10 Best Vibrating Butt Plugs In 2022 (For Beginners & Butt Experts)

The best vibrating anal plugs are awesome because everyone can enjoy them. If you’re looking for the best beginner, thick, and wireless butt plugs, we reviewed them all here for you. Read on:

Ah, anal play. Vibrating butt plugs are great because they can be enjoyed by anyone with an anus – which is everyone. You can literally use it regardless of your genitals, gender, or orientation.

Shopping for one (or two) isn’t that easy with the many options available today. So, we’ve listed the best vibrating anal plugs in various categories because we all want variety, don’t we?

And, we won’t just leave you hanging there to fend for yourself. We’ll also share some tips on how to choose the best toy for YOU and how to practice fun, pleasurable, and SAFE anal play.

Whoosh to the tush!

Budget Pick

Vibrating butt plugs made of silicone don’t have to be expensive. That’s precisely what Rocks Off Teazer Petite Sensations is for. It’s a petite, non-intimidating toy that beginners can easily use. Even more advanced players can add this to their collection for thee vibrations. It might not be the thickest toy for fullness, but it does have a good reach for your internal pleasure points.

SexualAlpha Top Pick

The best value for your money? Lovense Hush. Period. It’s great for solo and couple play. Your partner can control your backdoor vibes from across the room or across the world (as long as there’s internet). Its vibrations can sync with sounds and music, and you get complete control of vibration patterns and levels.

Upgrade Pick

We-Vibe Ditto exudes luxury – from its nice-to-touch silky silicone to its all-powerful vibration settings. When using this one, you’ll feel like royalty because it offers you convenience: it has controls via a button on the toy, a wireless remote control, and the app. This makes it great for couples and solo play.


Top 3 Vibrating Butt Plugs in 2022

Budget Pick

Rocks Off Teazer Petite Sensations

SexualAlpha Top Pick

Lovense Hush

Upgrade Pick

We-Vibe Ditto

Insertable length:
4”
3.8”
3”
Width:
0.71”
1.5” (Small), 1.75” (Medium)
1.19”
Power type:
N battery
USB rechargeable
Rechargeable (plug), CR2032 battery (remote)

Best Vibrating Butt Plugs & Remote Controlled Anal Sex Toys

SexualAlpha Top Pick

1. Lovense Hush

price:
$$
Material:
Silicone
Length:
4.8”
Insertable length:
3.8”
Width:
1.5” (Small), 1.75” (Medium)
Power type:
USB rechargeable
Vibration settings:
Unlimited
Waterproof:
Submersible
  • Has an app for long-distance use
  • Vibrations can be synced to sounds or music
  • Unlimited vibration settings and patterns
  • Customize your vibration levels
  • Connection could be unstable

There’s a lot to say about Lovense Hush.

To keep it simple: GET IT. NOW.

Hush is an innovative anal sex toy. It’s Bluetooth-compatible, and you can control it through its app. That means it’s perfect for long-distance play as your partner can control the vibes.

Ergonomic might be a weird word to describe a sex toy, but Hush really is. It’s girthy and makes you feel FULL, but it’s very tapered on its tip to make insertion into your bumhole easy-peasy.

It has 7 vibration modes to choose from right off the box. But, the sky’s the limit with this as you get unlimited vibrations settings, patterns, and levels that you can customize on the app. Plus, it even syncs with sounds and music. Uhm, hello technology?

Well, like many technologies, the connection could be a little fuzzy. So, make sure you (or your partner) are not too far away when controlling the app in a particular range or that your internet connection is stable if you’re far, far from each other.

It also has two size options that only differ in width – everything else is the same. Small is 1.5 inches wide, while Medium is 1.75 inches.

It’s not the cheapest toy out there, but it’s a super good value for money, considering there are many more expensive toys that don’t do even half of what Hush does.

If you want to read more about Lovense Hush, we have all you need to know here.


Budget Pick

2. Rocks Off Teazer Petite Sensations

price:
$
Material:
Silicone
Length:
5”
Insertable length:
4”
Width:
0.71”
Power type:
N battery
Vibration settings:
7 speeds
Waterproof:
Submersible
  • Very affordable
  • Small and petite
  • Size is ideal for beginners
  • Might be too thin or small for some

Some people only want the vibration on their butts without many bells and whistles. And that’s okay. If you agree, you can get the Rocks Off Teazer Petite Sensations.

This toy is super affordable if you’re a starter and still exploring if you would enjoy anal play or nah. 

It might be labeled a beginner’s toy, but anyone can use it for the vibes. Of course, if you’re a starter anal player, this anal plug is very manageable to insert. You wouldn’t even need too much lube for it. It’s only less than an inch wide. That’s thick enough for people who’ve never inserted anything in their anus before, though.

Anal players sometimes want the stretch and filling sensation. If that’s you, this toy isn’t for you.

But if you want a slimmer toy with more length, then Teazer Petite Sensations is perfect. It’s 4 inches long, which is a good length to reach your internal hotspots.

The small size packs STRONG vibrations. There are 7 speed options to choose from – plenty enough for a regular user.


Upgrade Pick

3. We-Vibe Ditto

price:
$$$
Material:
Silicone
Length:
3.5”
Insertable length:
3”
Width:
1.19”
Power type:
Rechargeable (plug), CR2032 battery (remote)
Vibration settings:
10+ vibration modes
Waterproof:
Submersible
  • Control in three ways: right on the toy, on the app, or remote control
  • Great for couples
  • Silky silicone feels nice to touch
  • Waterproof
  • Pricey
  • Might be too small for more advanced users

We-Vibe Ditto is a plug of luxury. If its silky silicone finish feels glorious to your touch, can you imagine how much more on your bum?

Ditto lets you control its vibration settings through its app, remote control, or from the button on the plug’s base. You’re not limited to the app for wireless control, which is handy.

I like using this in the bathtub with a glass of wine while lighting my favorite scented candle to complete that luxurious feel. It’s waterproof, so water play is doable.

Of course, your partner can participate in your me-time by controlling your vibes through the app. Oh, fun times.

Right from the get-go, Ditto has 10 vibration modes. They are varied from low rumbles to teasing “Tease” mode, bringing you to the edge of orgasm.

Its neck is also pretty flexible, making it conform to your body’s shape and position well. Inside, it won’t feel imposing or uncomfortable. The bulbous shape also does a really good job stimulating your anal walls. You should try it to know what I’m talking about.

It is pretty petite, so more advanced users might find this butt plug too small for them to enjoy. But, personally, I find the strong vibrations make up for the size.


Best for Rimming Sensations

4. b-Vibe Remote Control Rechargeable Vibrating Rimming Butt Plug

price:
$$$
Material:
Silicone
Length:
5”
Insertable length:
3”
Width:
1.43”
Power type:
Rechargeable
Vibration settings:
7 rotation and vibration patterns, 6 intensity levels
Waterproof:
Splashproof
  • Unique rimming sensations
  • Girthy, makes you feel full
  • Remote-controlled for convenient play
  • On the pricier side

Rimming is a fun oral-to-anal play that involves licking, kissing, and sucking. Long story short, it feels great!

Well, you can replicate that sensation with b-Vibe’s Rimming Butt Plug. Its neck (the part that sits right on your sphincter) has rows of rotating beads. You can’t see it on the toy, but you can feel it. As these beads spin, it feels titillatingly good on your bumhole.

This rocket-shaped butt plug might look petite, but it’s quite girthy. It will give you a filling sensation. Thankfully, its blunt tapered tip helps with insertion.

The only thing is… it’s not very forgivable to your pocket. It’s quite an expensive toy, but really worth it if you can get it.


Best Wireless Vibrating Butt Plugs

5. Nexus Ace

price:
$$
Material:
Silicone
Length:
4”
Insertable length:
3.5”
Width:
1.27”
Power type:
Rechargeable
Vibration settings:
6 modes
Waterproof:
Submersible
  • Teardrop-shaped for easy insertion
  • Ribbed neck for extra stimulation
  • Small size is beginner-friendly
  • Some might find the ridges too stimulating

Nexus Ace is a vibrating anal sex toy that gives you a streamlined stimulation with its shape. Plus, controlling it with a wireless remote control makes your anal play fun AND convenient.

I like wearing this while doing household chores, and I can easily switch vibration modes with the remote control. The vibrations are also quiet, so it isn’t suspicious to use around the house. Finishing my to-do lists is more fun than ever.

Charging it for 80 minutes lets me enjoy it for 80 minutes as well. A good deal, if you ask.

The teardrop shape makes this toy very easy to insert. Plus, it’s petite enough for beginners to use.

If you ever find this size too small for you, it has bigger options as well.


Best Vibrating Anal Beads

6. b-Vibe Triplet Vibrating Anal Beads

price:
$$$
Material:
Silicone
Length:
6”
Insertable length:
5”
Width:
1.19”
Power type:
Rechargeable
Vibration settings:
15 vibration patterns, 6 intensity levels
Waterproof:
Splashproof
  • Remote-controlled anal play
  • Graduating anal beads
  • Many readily-available vibration patterns
  • Button could be easy to accidentally press
  • On the pricier side

Anal beads are great on their own. Add vibrations, and you’ll have a toe-curling orgasm.

b-Vibe Triplet has a triplet of beads on its shaft. The smallest bead makes inserting the toy on your bum manageable, and then the beads subtly grow slightly bigger.

This toy is smooth and silky. And with a good amount of lube, it’s easy to put in even despite its round balls.

It’s equipped with not just one but TWO MOTORS. With more motors come more vibrations. 

The button on its base is quite big. So I sometimes find myself accidentally hitting it in certain positions. I don’t find it a biggie as I can easily switch it back using the remote control.


Best Metal Vibrating Butt Plugs

7. Nexus Cestos

price:
$$$
Material:
Stainless steel
Length:
5”
Insertable length:
4”
Width:
1.59”
Power type:
Rechargeable
Vibration settings:
6 modes
Waterproof:
Submersible
  • Precise stimulation
  • Great for temperature play
  • Shiny metal lets it glide in easily
  • Not for beginners
  • On the expensive side

Vibrating butt plugs are usually made in silicone. But there are also metal options. 

Stainless steel vibrating butt plugs, like Nexus Cestos, open unique sensations to your anal play that you can’t get from others.

The firmness of this plug makes it ideal for precise stimulation. It’s very stimulating, so I wouldn’t recommend this to beginners. Plus, it’s very girthy with 1.59 inches of width or 5 inches in circumference!

Metal responds very well to temperature, so Cestos is the best butt sex toy you can use if you want to go for hot or cold butt plugs.

Stainless steel is also an expensive material. So, yeah, this butt plug is quite expensive. But it’s a worthy investment if this is the sensation you’re after.


Best Tapered Vibrating Butt Plugs

8. Mantric Rechargeable Vibrating Anal Plug

price:
$$
Material:
Silicone
Length:
4.5”
Insertable length:
3.5”
Width:
1.35”
Power type:
USB rechargeable
Vibration settings:
Not specified
Waterproof:
Submersible
  • Great teardrop shape
  • Tapered for easy insertion, but gets quite thick in the middle
  • Button could be hard to find

Mantric is a sleek, no-fuss anal toy. And I rather like its simplicity.

It has a lovely teardrop shape with a small and tapered tip. You should be looking for a toy like this one if you’re just starting to insert it easily to your rear end.

But this is not for beginners. Period. This is for beginners ready to take the next step in their anal journey *ahem* size up.

After successfully getting in the tip, the toy will flare to a pretty girthy shaft. Getting to it gives you a nice stretch – if you’re ready for it.

The button is recessed, which is good as it’s seamless. But it could also be challenging to find and toggle when plugged in your butthole and all lubed up.


Best Weighted Vibrating Anal Plug

9. b-Vibe Vibrating Snug Plug Medium

price:
$$
Material:
Silicone
Length:
5”
Insertable length:
3”
Width:
1.27”
Power type:
Rechargeable
Vibration settings:
6 vibration patterns, 4 speeds
Waterproof:
Splashproof
  • Weighted butt plug for filling sensation
  • Can be used for extended period
  • Thin, long neck for comfortable use
  • Might accidentally hit the button on the base

Did you know? If you want the feeling of fullness, you don’t always have to go for the bigger sizes or the thickest girths.

You can get that feeling as well from a weighted toy like the butt plug b-Vibe.

This plug feels snug as it weighs 112 grams. Unlike the usual teardrop or egg shapes of typical butt plugs, this one has a “torpedo” shape to hold the weighted ball inside it (for the weight).

You can also leave it for extended use as it has a long and thin neck that allows your sphincter to close. More weight, less stretch.

Its button on the base is quite big, which you might accidentally press. Unlike Triplet, it doesn’t have a remote control for easy control.


Best Travel-friendly Vibrating Butt Plugs

10. Desire Luxury

price:
$$
Material:
Silicone
Length:
5”
Insertable length:
4”
Width:
1.35”
Power type:
Rechargeable
Vibration settings:
8 vibration patterns, 12 intensity levels
Waterproof:
Submersible
  • Travel lock feature
  • Many built-in vibration settings to choose from
  • Not for beginners, might find it big

Butt plugs can be used for extended periods, like when you’re traveling. Being in transit can be boring, and vibes can help you relax and enjoy the passing time. 

Desire Luxury Vibrating ButtDesire Luxury can help you with that. *wink*

It has a travel lock feature to give you peace of mind while you’re traveling and make your sessions discreet. 

Its flared base is wide, slightly curved, yet not too bulky. The toy’s design also does a good job of staying in.

This butt plug is not really small. And while its shaft has a good curve, it’s not really the thinnest for insertion. Some people would find inserting this toy difficult, especially for beginners. I recommend this more to users who are looking for a stretching sensation.


Buying Guide

Before you proceed to the checklist of things you should look for in a toy, get to know yourself first. YOU are the most important consideration when buying an anal toy – and all other sex toys, in general.

When shopping for anal toys, there are a few factors you need to consider. It’s essential to keep in mind that not all toys work for everyone. Check reviews online, do your research, and understand what’s best for you before purchasing.

So, first… know what:

  • Your anus can handle. Familiarize with your body before inserting any foreign object into it. For example, you can start with your finger. That can be challenging to do on your own, so get your partner to join in the fun with you. If you don’t have a partner to play with, toys are good alternatives, bringing us back to the start. In that case, start at the smallest you can find. It’s going to be very hard to insert large anal toys anyway.
  • Your mobility skills are. Especially if you will be using it for solo play. Anal toys are easy to use, but you’d still need good ergonomics for comfort. Wrist pains, arthritis, and mobility problems could be challenging to navigate anal toys (your butt is at your back, after all). Fortunately, there are toys with this mind. For example, some have a handle loop for you to push it out easily.
  • Your preference is – depth, girth, or both. Different people like different sensations. Some people want the feeling of fullness and being stretched out. For these people, girthy toys will feel best. Meanwhile, some want a deeper penetration (aka depth play). Thickness doesn’t matter much to them, but length is. 

Moving on to choosing the best butt plug vibrator for you, consider the following:


Size

Your anus is a tight space. It’s used to pushing stuff out, not inserting things in. (But, boy, does it feel good.) Naturally, it will be very tight for beginners to insert anal toys in the first few times.

But like many things in life, practice makes perfect. And your anus can be trained to open up with anal stretching.

When it comes to size, start small. Go for petite butt plugs – those that come with shorter lengths and smaller girths. You can always size up later. Moving forward is easier than going backward.

More advanced anal players have gone through that training and already know how big they want their butt plugs.


Material

One of your first considerations when looking at the material of your sex toy is if it’s body-safe. There are vibrating dildos made of TPE and soft plastic. But these are porous materials. They can be breeding grounds for bacteria. And for something you’ll insert into your bum? Not a good idea.

So, go for nonporous materials. The best ones you can find are silicone butt plugs. They are also the most common. 

You might find those made in metal – quite pricey but unique sensations. Make sure they’re made in stainless steel. Not all metal toys are created equal. So, again, body-safe choices only pretty please.


Shape

A vibrating butt plug’s shape has two important functions. One, for insertion. Two, for stimulation.

Butt plugs often have an egg or teardrop shape. The tip is also usually tapered so that it’s easy to insert into your tight hole. The deeper you go, the thicker the toy could get.

There are also anal beads – the shaft consists of multiple round beads that increase in size in most cases. They give you that pop-pop-pop sensation when you slide it in and, most especially, out – incredible sensations mid-orgasm.

Curved shafts also work great for prostate play. It will try to hit the P-spot during penetration without you doing crazy angles.


Vibration settings

Different people prefer different vibes. What works for one may not work for the next person.

That’s why having varied intensity levels, vibration patterns, and vibration speeds are really helpful. The more, the better.

This way, you can find one that really matches your rhythm well.


Anal-safe

Of course. Vibrating butt plugs are made for anal play. So, they should already come with a flared base. It’s a no-brainer.

In case you don’t know, a flared base is a base on your butt plug that should be wider than the broadest insertable part of your toy.

Purpose? To keep it out of your body. Your sphincter is quite strong. And it could suck in the toy inside you, which will not be that hard when the toy is all lubed up and shiny.

If that happens, that will mean a trip to the ER. Your anus doesn’t have a wall, unlike the vagina. Things could go past your rectum and colon, and that’s… not where they should be.


Waterproof

Most butt plugs are waterproof. But vibe ones may not all be waterproof as it has a motor inside them for the vibrations.

Vibrating butt plugs have varying waterproof capabilities. Some are submersible, while others are splashproof. Submersible ones are better for water play as you can use them in the shower or bath. Splashproof ones won’t be damaged if exposed to water, but you have to be more careful.

Waterproof toys are not just good for aqua fun, but they also make cleaning easier.


Power type

Vibrating butt plugs with replaceable batteries are usually cheaper. But they also come with some things to think about.

The batteries are not that expensive, but they could be inconvenient. Say you might be traveling, and you forgot or ran out of extra batteries. As you will be buying batteries as long as you use the toy, it might also cost you more in the long run.

Rechargeable toys have the edge of convenience. The initial purchase might be a bit higher, but you won’t have to buy anything else in the future. You can always just charge it wherever you are, as many of these sex toys are now USB rechargeable.


Ergonomics

Ergonomics is the application of physiological principles to the engineering and design of products. In butt-plug language – the measurements that make sure your butt plug can go in and out of your butt with no issue, stay in place when you need it, be easy to handle, and so on. 

Good butt plugs should be easy to grip and hold onto even when your fingers are lubed up. They also need to have pull-out tabs or handles, so your toy won’t get stuck in you and cause you an unpleasant ER visit.


Budget

Plan what you are willing to spend on a new toy, but keep in mind you may not have a good grasp on the market yet. Be flexible and prepared for surprises. 

Your purchase likely won’t end with the butt plug itself. You’ll need things like lubricants and toy cleaning solutions to ensure you’re playing safely, and those things will also cost you, even if it’s not much.

The good news is there are fantastic butt plugs for every budget. Toys with more features it luxurious materials will always be more expensive, but you can also have plenty of safe fun without breaking the bank. That’s why our articles always have a budget pick.


FAQ

What is a vibrating butt plug?

A butt plug is a sex toy designed to be inserted into the rectum and stay there until taken out. Some butt plugs also vibrate for that bit of extra stimulation. 

These toys can be used by anyone, regardless of gender – we all have an ass, and all asses need a bit of pleasure now and then.  They’re very versatile – they can be used solo, with a partner,  during sex, for public play… the possibilities are endless.


Why use an anal plug vibrator?

For starters, the pleasure. The anus is surrounded by nerve endings just waiting for you to switch on.

It’s also beneficial to master stimulating the area for another reason – the butthole acts as a passage to accessing our internal hotspots. Yes, ladies and gentlemen. For men, that’s the prostate or the “male G-spot.” For women, it’s a unique sensation to stimulate the G-spot and A-spot from the other side.

And, of course, anal orgasms. Vibrating butt plugs can help in reaching this.


Are butt plugs safe?

Yes, butt plugs (vibrating and nonvibrating) are safe to use as long as you take precautions. What are these butt play rules?

First, use lube. Lube is imperative – no discussions. And when you use it, you should be generous. The friction can cause irritation and anal fissures or tears in the skin. And maybe even real tears from your eyes if you cry because that can be painful.

Second, you should properly clean your anal sex toys before and after every use to be safe. This thing goes into your anus, which is where, you know, poop also passes by. Even when you douche, there is still microscopical fecal matter out there that stays behind. Transmitting it elsewhere could cause infections. And toys carry STIs as well if you share them with a partner.

We’re all about safety here, folks.


Does anal penetration hurt?

Yes, it could hurt. But it doesn’t always have to.

You can expect to feel discomfort, especially in your first tries, as your anus gets used to the penetration.

You can lessen that feeling by using lots of lube, ensuring you’re aroused, and taking things slow.


How to use anal plugs?

  • Relax. Being nervous will cause your sphincter to clench tightly close, making insertion impossible and even painful. So relax, loosen up, and make sure you’re aroused before starting to put anything in.
  • Apply lots and lots of lube. Think you’d done enough? Apply even more. The anus doesn’t self-lubricate like the vagina, which helps with insertion. You would need the help of your water-based lube for your anal plug to get in without problems.
  • Take it slow. Press the tip of your anal toy against your anus. Once you feel comfortable, gradually increase the pressure until it goes all the way in – or until the depth that works for you.
  • Enjoy! Turn on the vibrations, thrust it in and out… Do what feels best to you. There’s no right or wrong way to enjoy anal play. 
  • Stop if you feel any pain. Expect some discomfort as your body gets used to the feeling of being penetrated. But if it’s very painful, stop and listen to your body saying no. You can always try again later.

How to clean the anal sex toy?

The last thing you want to do after orgasm is to get up and clean your toys. Sorry to break it to you, but you have to.

What should your cleaning routine look like? Well, that depends on a lot of things.

Vibrating butt plugs have motors. So, submerging them in water isn’t really a good idea, even if they’re waterproof. You may do that to sterilize it in boiling water but check with the manufacturer’s instructions first.

If you are sharing your toy with a partner (which we don’t recommend, but if you do), wash them in between traveling from one body to another. And – never switch lanes from anus to vagina. The vagina is very sensitive, and the toy could carry bacteria from the anus that could cause infection. Big no-no!


How should I store my butt plugs?

When you’re not using your butt plugs, you should keep them somewhere safe.

Avoid areas with extreme temperatures. Varying extreme temperatures could compromise the toy’s components, especially its motor. It won’t just degrade the material but might also break the toy. Place it somewhere dark and away from direct sunlight as it could cause your toy to fade. 

These toys usually come with storage bags. Keep it inside the pouch or box to prevent it from collecting dust and lint, especially for silicone materials that are quite tacky.


Should I use a condom?

That would be up to you. But there are some benefits to it.

For one, you can protect yourself and your partner from infection if you share toys. It also lessens the cleaning process. (NOTE: Lessen, not skip.)


What is the best lube for vibrating butt plugs?

There are anal lubes made specifically for anal use. They last longer, specifically for their purpose.

Water-based lubes are compatible with most sex toys, so opt for them to be safe. They are not as thick, glide, or long-lasting as their other counterparts, but they’re the most “friendly” choice regardless of material. Just reapply as much as needed. 

Silicone lubes are great because they last longer and have an excellent glide, but they’re not safe for silicone toys. Silicone on silicone can degrade the material. So, unless you’re using a metal butt plug, skip it.


What are other things to consider before buying a vibrating anal toy?

If you’re buying the toy for yourself, you’re pretty much all set. However, a lot of vibrating butt plugs have remote controls and apps and are made for couples’ play. If you’re getting this for a partner, you need to be more cautious. 

Communication and consent are both very important in any relationship, and even more so when it comes to intimacy. 

Anal play isn’t for everyone – make sure your partner is down with the idea. Talk about how you would want to use your new toy – behind closed doors, for discreet public play, for long-distance play? Make sure you take your partner’s preferences into account when choosing the butt plug itself.  

Respect your partner’s boundaries and don’t push them to do things they’re not comfortable with.


Where can I buy the best vibrating butt plug online?

Be careful where you buy your toys from – you don’t want to end up with a cheap knockoff or a dangerous toy.

If you want to get our SexualAlpha Top Pick, it’s best to turn to Lovense’s official website.  If you’re looking forward to browsing around before buying, SheVibe and Lovehoney will never let you down.  


Conclusion

Which of these vibrating butt plugs passed the vibe check? All of ‘em, of course. You just gotta choose one that passed YOUR vibe check.

A few things to take away before we bid goodbye: choose the best toy that matches your needs and wants (not what’s best for them), use lots and lots of lube, relax and enjoy the vibes in your booty action.

Aliyah Moore

Aliyah Moore

Aliyah Moore (she/her) is our resident sex expert at SexualAlpha. She’s a certified sex therapist with a Ph.D. in Gender & Sexuality Studies. Aliyah is a proud Black, bi-sexual femme passionate about empowering minority voices to embrace their sexuality and identity. She loves to write about everything sexual wellness and gives no-nonsense sex and relationship advice.

Got Questions? Ping me on Twitter.