I bought my first butt plug at 22 from a sex shop I was too embarrassed to be seen walking into. I grabbed the first thing that looked small enough, paid in cash, and didn’t ask a single question. I used it once, wrong — no lubricant, rushed insertion, too tense — and threw it in the back of a drawer for two years.
This is the standard butt plug origin story. Impulse purchase. Bad first experience. Abandoned in a drawer. Shame that didn’t need to be there.
Here’s what I wish I’d known: butt plugs are not one-size-fits-all. They come in different diameters, lengths, shapes, materials, and weights. The right one, used slowly with lubricant and patience, can produce sensations that go far beyond “something’s in my butt.” The wrong one — especially a cheap jewel plug with a too-small base — can end in an emergency room visit nobody wants to explain.
This guide covers everything: how to choose a first plug, how to size up over time, what shapes exist and why they matter, which materials are safe for anal use, how to train your body for larger sizes, and the safety rules that keep you out of the ER. It’s written for absolute beginners who’ve never put anything in their butt and for people who’ve been using the same plug for years and want to know what else exists.
Before any discussion of sizes, shapes, or materials, there are three rules that are not negotiable:
Every butt plug must have a base that is wider than the widest part of the insertable portion. This prevents the plug from being sucked entirely into the rectum — which happens more often than you think, because the anal sphincters and rectal muscles can draw objects inward.
If a toy doesn’t have a flared base, it is not a butt plug. It might be shaped like one. It might be marketed as one. It is not safe for anal use. Full stop.
Jewel plugs — a specific warning: The round, gem-topped metal plugs sold everywhere for $5–15 look beautiful. Many have bases that are the same diameter as — or barely wider than — the widest point of the bulb. A base that isn’t substantially wider than the bulb can slip inside during orgasm, when the anal muscles contract involuntarily. Not hypothetically. This is a known ER presentation.
If you own a jewel plug, check the base diameter. It should be at least 1.5x the diameter of the widest part of the bulb. If it isn’t: throw it out. The $5 you saved isn’t worth the conversation with the ER triage nurse.
The rectum does not self-lubricate. Unlike the vagina, which produces its own moisture during arousal, the anal canal and rectum are dry. Friction causes micro-tears in the delicate rectal tissue. Micro-tears increase STI transmission risk and can become infected.
Use lubricant. Use more than you think you need. Reapply during longer sessions.
Best lubricant choices for anal play:
The anal sphincter is a muscle. Muscles can be trained to relax, but they cannot be bullied into submission. If insertion hurts — sharp pain, not stretching discomfort — you’re either not relaxed enough, not using enough lubricant, or the size is too large for your current level.
Stop. Breathe. Try again more slowly. The butt plug should be inserted to the point of resistance, held there for 10–20 seconds while you breathe deeply, and then — when the sphincter relaxes — slid in the rest of the way.
Butt plug sizing is about diameter, not length. The anal sphincter stretches to accommodate girth. Length is mostly irrelevant for comfort and safety — a plug that’s too long will simply not go all the way in. A plug that’s too wide will be painful or impossible to insert.
Measure in diameter (or circumference) at the widest point of the bulb. Length is secondary.
| Level | Diameter | Feels Like | Who It’s For |
|---|---|---|---|
| Finger-size | 0.8–1.0 inch (2–2.5 cm) | One finger | Absolute beginners. Day one. |
| Beginner | 1.0–1.25 inch (2.5–3.2 cm) | One wider finger | First plug. Most people’s starting point. |
| Intermediate | 1.25–1.5 inch (3.2–3.8 cm) | Two fingers | 4–8 weeks of regular use. The sweet spot. |
| Advanced | 1.5–1.75 inch (3.8–4.4 cm) | Full sensation | 3–6 months of training. |
| Large | 1.75–2.0 inch (4.4–5 cm) | Significant stretch | 6+ months of dedicated training. |
| XL / Expert | 2.0+ inch (5 cm+) | Maximum stretch | Experienced users only. Long-term training required. |
Go up by no more than 0.25 inch (0.6 cm) in diameter at a time. Going from a 1-inch plug directly to a 1.5-inch plug is a 50% increase in diameter — and a much larger increase in circumference (circumference = π × diameter, so a 50% diameter increase is a 50% circumference increase). Your sphincter doesn’t negotiate. Train it gradually.
If you’re between sizes: the next plug should be 0.2–0.25 inches wider than your current maximum. Not more. There’s no award for rushing.
You’re ready when: your current plug inserts easily, with minimal warmup, and stays comfortable for 20+ minutes. If you still need 5 minutes of slow breathing to get your current plug in, you’re not ready for the next size. The training is complete when your body no longer registers the current size as a challenge.
The shape of a butt plug determines everything: how it goes in, how it stays in, what it stimulates while it’s inside, and how it comes out.
Shape: Smooth, tapered tip widening gradually to a bulb, then narrowing sharply to a neck before the base.
Best for: Beginners and everyday wear. The tapered tip eases insertion. The narrow neck lets the sphincter close around the plug for secure retention. The gradual slope makes removal gentle. This is the default shape for good reason — it works.
Example sensation: Fullness with minimal awareness once inserted. Comfortable for extended wear.
Shape: Multiple bulbs of increasing size, like a string of spheres.
Best for: Training — you can use the first bulb today, the second bulb in two weeks, the third in a month. Also good for a “pop” sensation as each bulb passes the sphincter, which some users find intensely pleasurable.
Example sensation: Rhythmic, sequential stimulation. Each bulb provides a distinct moment of stretch and release. More active sensation than a classic single-bulb plug.
Shape: Classic bulb shape with a T-shaped base (flat bar perpendicular to the shaft) instead of a round base.
Best for: Extended wear. T-bar bases sit between the buttocks and are more comfortable for sitting, walking, and wearing during sex. Round bases can press into the cheeks uncomfortably during prolonged sitting.
Who needs this: Anyone planning to wear a plug for more than 30 minutes. Anyone who wants to wear a plug during penetrative sex. Anyone who’s had discomfort with round-based plugs.
Shape: Pronounced forward curve targeting the prostate (2–3 inches inside, toward the belly button).
Best for: Anyone with a prostate. The curve applies direct pressure to the prostate, producing a qualitatively different sensation than a straight plug. Prostate-focused plugs are the bridge between “something in my butt” and “oh, that’s what the prostate feels like.”
Example sensation: Deep, diffuse pelvic sensation rather than localized anal sensation. Can produce prostate orgasms without additional stimulation.
Shape: Classic or prostate-curve shape with an internal motor.
Best for: People who enjoy vibration anywhere. Vibration in the rectum transmits through the pelvic floor and can be felt throughout the pelvis — including by the partner during vaginal intercourse (the vibration passes through the shared wall between vagina and rectum).
Note: Cheap vibrating plugs have weak motors and short battery life. A quality vibrating plug costs more than a quality silent plug. The motor matters.
Shape: Classic shape made from heavier material (stainless steel, weighted glass).
Best for: A different quality of sensation — the weight provides constant, passive pressure that silicone plugs don’t. Some users find this grounding and pleasurable. Heavier plugs are more noticeable during movement — walking, changing positions — which can be a feature or a distraction.
Shape: Extended, slender shaft reaching deeper into the rectum and sometimes into the sigmoid colon.
Not for beginners. Depth play is a specialized category requiring understanding of internal anatomy (the rectosigmoid junction, the bend between rectum and colon). Standard plugs should stay within the rectum — 4–6 inches insertable length is typical. Anything longer is depth-play territory and requires specific knowledge, specific toys, and significant experience.
Best: Silicone, glass, stainless steel. Non-porous. Can be fully sanitized. Compatible with appropriate lubricants.
Acceptable (with caution): High-quality ABS plastic with a smooth finish.
Unacceptable for anal use: TPE, TPR, PVC, jelly, rubber, any porous material. The rectum absorbs substances directly into the bloodstream — it’s one reason suppositories work. You don’t want an unknown chemical cocktail absorbing into your blood from a porous toy. Materials that are borderline acceptable for external use become definitively unacceptable for internal use when that internal destination is the rectum.
Anal toys must be cleaned more thoroughly than vaginal toys. The rectum contains bacteria. Those bacteria don’t belong in the vagina. If you use a plug anally and then vaginally without cleaning it, you’re transferring rectal bacteria directly into the vaginal canal — a reliable way to cause bacterial vaginosis, UTIs, and other infections.
After each use: wash with soap and warm water, then sanitize. Non-motorized silicone, glass, and steel toys can be boiled for 5–10 minutes or run through the dishwasher (top rack, no detergent). Motorized toys should be wiped down with a 10% bleach solution or dedicated toy cleaner, paying extra attention to the base and any seams.
Before buying a plug, spend two weeks using your own finger during solo sessions. Lubricate. Insert slowly. Breathe. The goal is not orgasm or pleasure. It’s familiarizing your body with the sensation of internal pressure and learning to consciously relax your sphincter.
Practice contracting and relaxing your anal sphincter on command — the same muscle you use to hold in gas. Contract for 5 seconds, release for 10 seconds. Repeat 10 times. Do this daily, not during sex. You’re building conscious control of the muscle.
Buy a silicone tear-drop plug in the 1.0–1.25 inch range. Nothing fancier. No vibration. No prostate curve. No metal. Just a basic, body-safe silicone plug with a flared base and a taper that eases insertion.
Session structure:
Frequency: 2–3 times per week. Not every day. Muscles need recovery time between training sessions, just like at the gym.
Wear the first plug for 15–30 minutes during solo sessions. Experiment with movement — walking, changing positions — to learn how the sensation changes. Some users find that wearing a plug during external masturbation intensifies the orgasm, because the anal contractions that accompany orgasm press against the plug.
When the current plug inserts easily and stays comfortable for 20+ minutes, graduate to the next size — 0.2–0.25 inches wider. The new plug will feel significant. That’s normal. Return to the week-1 protocol with the new size: slow insertion, 5–10 minute wear, breathing through the stretch.
At this point, you’ve established a baseline. You can stay at your current size indefinitely — comfort and pleasure are the goals, not maximal girth. Or you can continue sizing up gradually, exploring different shapes, trying vibration, experimenting with extended wear, and discovering what your body responds to.
A plug worn during vaginal intercourse changes the internal geometry. The rectum and vagina share a wall. A plug in the rectum narrows the vaginal canal slightly, which can increase sensation for both partners. For the person being penetrated, the combination of vaginal fullness and anal fullness produces a uniquely “filled” sensation.
During orgasm, the involuntary contractions of the pelvic floor — which include the anal sphincter — press rhythmically against the plug, often intensifying the orgasm.
Practical tips:
If your partner is wearing a plug during vaginal intercourse and you have a penis: the base of your penis may contact the base of the plug. This can be pleasurable for the wearer (pressure on the plug = pressure on the prostate or posterior vaginal wall) but can shift the plug unexpectedly. Communicate.
If your partner is wearing a plug during anal intercourse: do not insert your penis while the plug is in place. The rectum accommodates one object at a time. Remove the plug, apply additional lubricant, and proceed with anal penetration only after the plug is out.
You bought a plug because it looked “reasonable.” It’s 1.5 inches in diameter. You’ve never put anything in your butt before. This will hurt, and you will think the problem is you. It’s not you. It’s a sizing error.
Fix: Start at 1.0–1.25 inches regardless of what “looks small.” Your sphincter judges in millimeters, not eyeballs.
The round gem at the end is beautiful. The base it’s attached to isn’t wide enough. During orgasm, the involuntary contraction of the anal sphincter can pull the entire plug inside — and the tiny base won’t stop it.
Fix: Check your base. It must be at least 1.5x the width of the bulb. If it isn’t, the plug is decoration, not a sex toy.
“The plug came with a small packet of lube. I used that.” That packet contains 2–3 ml. You need 5–10 ml minimum for comfortable insertion. The packet is a sample, not a supply.
Fix: Buy lubricant. Use it generously. Reapply.
After a long session, the lubricant has partially absorbed. The plug feels stuck. You pull harder. Wrong.
Fix: Relax. Re-lubricate the base where the plug meets your body. Bear down gently (as if having a bowel movement) — this relaxes the sphincter and pushes the plug outward. Pull gently while bearing down. It will come.
Numbing creams or lubricants (“anal ease”) eliminate the pain signal that tells you something is wrong. If insertion hurts, the correct response is to stop, use more lubricant, and go slower — not to numb the area and push through. Numbing agents mask injury. They don’t prevent it.
Fix: Never use numbing products for anal play. Pain is data. Listen to it.
Silicone lubricant can bond with and break down silicone toys over time. It won’t melt your plug in 30 seconds, but it will degrade the surface with repeated use.
Fix: Water-based gel lubricant for silicone plugs. Silicone lubricant only for glass or steel plugs. (Need the full breakdown? Our lube guide covers every material-lubricant pairing.)
With the right plug: yes, within limits. A silicone plug with a T-bar base, narrow neck, and comfortable diameter can be worn for 2–4 hours by experienced users. Remove if you experience numbness, discomfort, or the urge to have a bowel movement. Remove and re-lubricate every 2 hours for extended wear. Do not sleep with a plug in — the lubricant will absorb, removal will be difficult, and the risk of internal irritation increases.
No — but it can get past the sphincter and become difficult to remove without medical assistance. This is why the flared base rule is absolute. A plug with a proper flared base cannot be lost. It will stop at the base. If a plug without a flared base — or with a too-small base — slips entirely inside, go to the emergency room. Do not try to fish it out yourself. Do not wait for it to “pass.” The rectum curves, and objects can migrate. The embarrassment is temporary. A perforated bowel is permanent.
No. The anal sphincter is a muscle. It stretches and returns. Brief use — even with large plugs — does not cause permanent stretching. Long-term, daily use of very large plugs over years can reduce resting sphincter tone, but this is reversible with pelvic floor exercises and reduction in use.
For context: the average bowel movement is approximately 1.5–2 inches in diameter. Your sphincter handles this daily. A 1.25-inch plug is well within normal physiological range.
For solo play: not necessary. A bowel movement an hour or two before, followed by a shower, is sufficient for most people. For partnered play where a partner will be in close proximity: a quick warm-water enema (not a full colon cleanse — just a rectal rinse with 200–300 ml of water) can provide peace of mind. Use plain warm water. Not soap. Not commercial enema solutions. Those contain stimulants that are not for pre-sex use.
The butt plug you bought on impulse at 22 — too big, wrong shape, no lubricant, one bad experience — was not a failure. It was a predictable outcome of buying a sex toy without information.
Now you have the information. Start small. Buy silicone. Check the base. Use more lubricant than you think. Go slow. Breathe. The first time you insert a properly-sized plug with adequate lubricant and patience, you’ll understand why people keep going back — the sensation of fullness, the way it changes every other sensation during sex, the sexual confidence that comes from knowing your own body at a level most people never reach.
Your butt deserves better than a $5 impulse buy. Start here.
Ready to shop? Browse our anal-safe toys — every plug has a flared base, every material is body-safe, and everything ships in a plain box. No judgment. Just quality.
About the Author:
Sam Rivera is a sex and relationships writer at AmorSerere. He bought his first butt plug at 22, used it wrong, and abandoned it for two years. At 26, armed with actual information, he tried again — and it changed everything. He writes for men who were told anal play was off-limits and for anyone who’s ever been too embarrassed to ask the questions this guide answers.
Last Updated: July 25, 2026
Writer and relationship coach focused on intimacy, communication, and connection.