Penetration, Pegging & Strap-On

This is a class about the craft of erotic penetration — anal and vaginal, with fingers, toys, and strap-ons — and the safety that surrounds it. It is not generic sex ed and it is not a manual of positions. It is the kink-relevant skill: how to warm a body up, how to read it moment to moment, how to choose and wear gear, how to match lube to material, and how to honor the handful of hard lines that separate a good night from an emergency-room night. Penetration done well is patient, attentive, and negotiated.

A word about bodies. Any body can top or bottom here. Vulvas, penises, and anuses all appear in these pages, and there are no default bodies — we never assume who is wearing what. Pegging, in particular, is named in this class as one ordinary configuration: a strap-on worn by a person of any gender, penetrating a partner of any gender. It is explicitly not “a woman pegs a man.” Strip that script out as you read; it has no place in the skill.

One scope line, in the same breath. Clinical work is not in this class. Urethral sounding, enemas, and speculum use are clinical procedures — they require sterile technique and sterile or surgical lube, and they live in our Medical Play 101 and Medical Play 201 classes. Do not improvise them from this material. Sterile and surgical lube belong to urethral work, and they are cross-referenced out of here entirely.

Penetration touches so much that this class owns penetration mechanics and the safety spine, and points to the others for the rest. The receiver’s headspace, surrender, and drop are the work of our Bottoming 101 class. External erotic touch and massage — the warm-up before the hand goes in — are our Sensual Touch & Erotic Massage class. Orgasm control during or after is Tease, Denial & Orgasm Control. General landing and aftercare doctrine is Aftercare 101. And if a barrier fails or there is a fluid exposure, that response is Bloodborne Pathogens & Aseptic.

The skill has a natural shape. It opens with the safety frame you have just read — the five lines and the scope — and then turns to the body itself: the anatomy that makes go-slow non-negotiable, and the discipline of reading a receiver. From there it is the doing, built smallest to largest — fingers as the on-ramp, then the craft of the harness and the strap-on, then pegging as its own ordinary configuration. After the doing come the two material questions that run underneath everything: lube by orifice and material, and hygiene with the cross-contamination line. The flared-base rule gets a section to itself. And it closes where any good scene closes — negotiation, consent, and the specific aftercare an anal receiver deserves.

In this lesson: the safety frame (above) · anatomy and go-slow (§ I) · the fingering on-ramp (§ II) · harness and strap-on craft (§ III) · pegging (§ IV) · lube by orifice and material (§ V) · hygiene and cross-contamination (§ VI) · the flared base and retrieval (§ VII) · negotiation and aftercare (§ VIII) · a gut-check and glossary to keep (§ IX–X).

I.Anatomy & Go-Slow Mechanics

A body has to be turned on and relaxed before anything goes in.

Arousal comes first, and relaxation comes before insertion. A body that is willing on paper but tense in fact will fight you, and fighting it is how people get hurt. The external arousal and warm-up that get a body there are the on-ramp our Sensual Touch & Erotic Massage class owns; this class picks up where the hand goes in. What you bring to that moment is patience and attention, because the anatomy underneath rewards both.

The anus has two sphincters, and the difference between them is the whole reason anal cannot be rushed. The outer one is voluntary — a partner can relax it on purpose, the way you unclench a fist. The inner one is involuntary; it does not answer to willpower. It releases only when the body is calm and unhurried, and it tightens against anything that feels like force. You cannot command it open. You can only make the conditions in which it lets go.

The vagina is more forgiving — it has more give and produces some lubrication of its own — but it is not infinitely so, and it is not self-sufficient. There is a depth limit worth respecting: the fornix, the deep recess around the cervix, marks the far end, and pressing hard into it is uncomfortable rather than pleasurable for most people. Even though the vagina self-lubricates somewhat, added lube is still the wise default; natural wetness varies with arousal, cycle, medication, and age, and assuming it is enough is how a comfortable insert turns into a sore one.

All of which makes reading the receiver a concrete skill, not a vibe. You watch and you listen, moment to moment: the breath, the sounds, the small flinch or the long exhale. The receiver guides depth, and the depth limit is not a fixed number — it can change and grow over the course of warm-up, so the wall you met five minutes ago may have moved. Angles and pacing are adjustable too; there is no single correct stroke, only the one this body, tonight, is telling you it wants.

One optional housekeeping note before the doing, kept brief because it is easy to over-do: douching is not required for anal play. If a receiver chooses to, keep it gentle — lukewarm plain water, low pressure, and well before the scene — because over-douching strips the rectal mucosa and raises the risk of irritation and infection. Less is the safer default.

Here is the principle that carries the rest of the class, and it is a mechanic, not a courtesy: every increment of depth or size is a fresh check-in. There is a yellow — a “slower,” a “wait” — that arrives before the red of a full stop, and your job is to catch it. The receiver has the right to stop at any depth, at any moment, for any reason. (What that surrender feels like from the inside, and how a receiver learns to ride it, is the work of our Bottoming 101 class; here, you read the body it produces.)

II.Fingering as the On-Ramp

The first instrument is also the most controllable one.

Fingers are where almost everything starts. They are the most controllable instrument you have — sensitive, articulate, and instantly responsive — and they are the standard way to warm a body up and build toward anything larger. The technique is unglamorous and exactly right: start with one well-lubed finger and build slowly, adding a second only when a fresh check-in confirms the first is welcome. Size is something you earn, increment by increment, never something you assume.

Two go-slow targets are worth knowing, and both belong to any body that has them. The G-spot sits on the front, belly-side wall of the vagina, a couple of inches in — a slightly different texture under a curling finger. The prostate (the P-spot) sits on the front wall a couple of inches inside the anus. The classic move toward either is the come-hither curl: fingers in, then a slow beckoning motion. Say this plainly — both are pressure-and-patience targets, not jab targets. They respond to steady, curious pressure, never to drilling.

III.Harness & Strap-On Craft

The wearer’s experience is a real, learnable skill in its own right.

A harness is a tool, and like any tool it comes in shapes that serve different bodies and different needs. There is no “best” one, only the right one for who is wearing it and why.

Fit is practice, not luck. Rehearse putting the harness on outside a scene, more than once, until you know exactly how tight you like it. Then set the buckles you like and leave them, so that when it is time to play only one or two straps move and your partner is not watching you wrestle with hardware. And position the dildo lower on the crotch — a “low rider” — for a more natural stroke and rhythm; mounted high, it fights the angle of your hips.

Choosing the dildo

Dildo selection is a safety-and-comfort decision before it is an aesthetic one. Smaller sizes and simpler shapes suit a less-experienced bottom, and especially anyone new to anal — you build up over time, the same way fingers build up. Flesh-cock realism versus an abstract or fantastical shape is pure preference and carries no weight beyond what the two of you like. There is one tension to flag here and resolve later: many of the loveliest non-porous materials lack a flared base, which puts them at odds with both harnesses and the anal-safety rule. Hold that thought — the flared-base section settles it.

Feeling through the toy

You cannot feel the toy directly, and that throws people. But reading the receiver through it is a genuine skill, not a workaround — you learn the body’s sounds and movements, and you learn to read the base pressing back against your own crotch. The wearer who pays attention feels more, not less. The craft is in the attention, and it gets sharper with practice the way any sense does.

Pleasure for the wearer can also be designed in, deliberately. Textured or grinding bases stimulate the crotch on every stroke. A vibrator can ride in a harness pocket or a bullet-hole in the base of the toy. Double-ended or Feeldo-style designs penetrate the wearer while penetrating the receiver. And turning the dildo in the harness lets you angle it toward a G-spot or a P-spot. Positions where the dildo is pushed against the wearer’s body rather than pulled away from it — the receiver on top, for instance — tend to be more stimulating for the wearer. None of this is a shopping list; quality silicone from dual-density makers exists and is worth seeking, but the teaching point is craft and material safety, not a catalog.

IV.Pegging

One ordinary configuration, with the prostate as the target.

Pegging is a strap-on worn by a person of any gender, penetrating a partner of any gender — one ordinary configuration among many, and it says nothing about anyone’s gender or orientation. Part of teaching pegging well is dismantling the shame and the worn-out scripts around being the one penetrated; that dismantling is the teaching. There is nothing to live down here. There is a body, a target, and a skill.

The target is the prostate — the P-spot — reached on the front wall a short way in, with steady go-slow pressure rather than depth-chasing. The anatomy from the first section governs: relaxation first, then the angle, then patience. The inner sphincter still answers only to calm, so pegging warms up exactly like everything else — fingers first, time given freely, lube reapplied.

There is one discipline specific to the wearer of a strap-on. Strap-on dicks tend to be longer and harder than flesh, and they transmit no sensation back to tell you that you have gone too far. So the wearer has to be deliberate about depth and generous with lube. The body’s feedback — the receiver’s sounds and movements — sets the limit, never the length of the toy. The toy will let you do harm the toy cannot feel; the receiver will not.

A practical workaround from the workshop floor, stated gender-neutrally: when the entry point is not visible from the position you are in, insert a finger first as a guide, then follow it in so you end up where you intend rather than blunt against tissue. The clean-finger and cross-contamination caveats attach here exactly as before — that guiding finger does not then travel to a vagina or mouth without a fresh glove or a thorough soap-and-water wash (not a quick rinse).

The receiving partner’s headspace — the surrender, the vulnerability, the drop that can follow — is the work of our Bottoming 101 class. This class attends to the partner only insofar as the top reads the body and dismantles the shame; the inner experience of receiving belongs there, and it is worth the trip.

And so the harness section’s lesson returns in its pegging-specific form: feel through the strap-on by reading the body, not the toy. Same skill, sharper stakes — because here the toy is longer, harder, and blinder than a finger ever was.

V.Lube by Orifice & Material

More than you think, the right kind, and never a dry insert.

One rule, firmly. The anus does not self-lubricate at all, which makes lube mandatory for every kind of anal play — there is no version of dry anal that is not an injury waiting to happen. The vagina self-lubricates somewhat, but added lube is still wise, because natural wetness is rarely as much or as durable as people assume. Never dry-insert, and reapply often: the right amount is reliably more than people expect.

One cross-reference out: sterile or surgical lube belongs to urethral work, which is a clinical topic this class does not teach. If your interest runs that way, it lives in our Medical Play classes — do not improvise it from here.

Finally, tie lube back to the pacing it serves. Every time you re-lube is a natural check-in — a built-in moment to ask the receiver how it is landing, whether to stay where you are, go deeper, or go larger. The reapplying is not an interruption of the scene; it is part of how the scene stays consensual stroke by stroke.

VI.Hygiene & the Cross-Contamination Line

Material decides how you clean it — and the anus-to-everything rule is absolute.

How you clean a toy depends entirely on what it is made of, and the two categories behave very differently.

Treat condoms on toys as a working tool, not just a cleanup convenience. They ease cleanup, they stop fluids bonding into a porous toy, and — the practical part — they let you change the working surface between orifices or between partners without re-sanitizing mid-scene. That is how you actually honor the cross-contamination line in the heat of a scene: peel the used condom, roll on a fresh one, carry on. You can even peel the condom before removing the dildo from the harness, which keeps the mess off the harness itself.

The fingering hygiene beat carries straight forward here. Trim and file your nails and use gloves before internal fingering, so a sharp nail cannot tear tissue you cannot see — and change the glove rather than carrying bacteria across orifices on the same hand. A fresh glove is faster than a UTI.

VII.The Flared Base & Retrieval Rule

The one line in this class that has no exceptions.

Two comfortable beliefs need disarming, because both feel safe and aren’t. First: a dildo with balls is not a reliable flared base. The balls feel like they would catch, but they don’t reliably, and they are usually not harness-compatible the way a true flared base is — so they fail twice. Second: many quality non-porous toys lack a flared base entirely. Beautiful wood, glass, and steel pieces are made without one and are therefore not harness-compatible and not safe for anal — gorgeous materials in the wrong job. Admiring the craftsmanship does not make the toy safe to insert.

Extend the principle to the vagina honestly. Vaginal retrieval is easier — the anatomy doesn’t pull objects away the same way — but apply the same flared-base or retrieval-cord discipline anyway, rather than treating the vagina as exempt. “Easier to get back” is not “guaranteed to get back,” and the habit is worth keeping uniform.

This reorders dildo selection. A flared base is the first filter, ahead of size, shape, material, or appearance — it is the gate, not a feature you weigh against the others. Decide on a flared base first; then choose among everything that passes that gate.

And one scope reminder: this rule is about toys, fingers, and strap-ons in erotic anal and vaginal play. Clinical insertion tools and anything urethral are out of scope and live in our Medical Play classes. We are talking about the gear in this class, used the way this class teaches.

VIII.Negotiation, Consent & Aftercare

Go-slow is consent in action — and an anal receiver deserves a real landing.

The conversation before play is concrete, and it is short enough to have every time. Cover:

• Barrier and lube allergies — latex, specific lubes, anything that has caused a reaction before.
• Relevant medical issues — bad knees that rule out certain positions, anything that changes what is sustainable.
• The warm-up plan — how you’ll get there, with fingers first and time given freely.
• The aftercare plan — what landing looks like for this person.
• Barriers and fluids — whether toys and strap-ons are condom-covered and whether they are shared, plus any STI status you both want on the table (the response to a barrier failure lives in Bloodborne Pathogens & Aseptic).
• Which dildo size or sizes — agreed in advance, with smaller as the honest starting point.

Tops should be transparent about inexperience and offer options rather than bluffing competence. Bottoms should say exactly how they like it — and say, out loud, that those preferences can change mid-scene, because they will. Naming all of this up front lets the receiver relax into the scene instead of bracing through it.

Restate the safety rule in its consent form. Every increment of depth or size is a fresh check-in. There is a yellow — a “slow,” a “wait” — that comes before the red of a stop, and catching the yellow is the top’s job. The receiver controls depth and may stop at any point, at any depth, full stop. The anatomy section drew this as a fact about tissue; here it is the same line drawn as consent.

Choose positions both people can sustain — and know that for the top, this is cardio. Use pillows, wedges, and position aids freely; they are tools, not a crutch to be embarrassed by. Keep the rhythm even — it can change speed, but it should not go bouncy or irregular. For bad knees, the workshop offers two gender-neutral options: stand at the bedside (which often gives better access for added stimulation), or sit facing each other with the receiver’s legs over yours and a pillow under their hips, so you can angle up into them — good for reaching a G-spot or P-spot.

Now the part this class owns. An anal receiver’s area can feel tender or raw afterward, even when nothing went wrong — so plan for it. Warmth, water, a gentle landing, and a real check-in are the penetration-specific aftercare beats. And the right to stop at any depth is not only a rule for during the scene; it is part of aftercare doctrine too — a receiver who stopped early stopped correctly, and the landing honors that without a flicker of disappointment.

General aftercare doctrine — the broader landing, the drop that can come hours later, the holding — is the work of our Aftercare 101 class. Orgasm control, during or after, is our Tease, Denial & Orgasm Control class.

IX.Before You Begin

A quick gut-check. Tap to tick — and notice anything you can’t honestly check off.

• Flared base or retrieval cord confirmed on anything going in
• Lube matched to the material and the barrier — and plenty of it
• Nails trimmed and filed smooth, gloves ready
• Warm-up and aftercare planned, dildo size negotiated
• A plan to change barriers when moving between orifices — no anus-to-vagina or anus-to-mouth without a fresh barrier or a thorough soap-and-water wash (not a rinse)
• Go-slow agreed: every increment is a fresh check-in, yellow before red
• The right to stop at any depth is honored — out loud, by both of us

X.Quick Glossary

Flared base

A wide base on a toy that the body cannot draw inside — the non-negotiable for anything inserted anally, and what makes a dildo harness-compatible. A retrieval cord or handle serves the same purpose.

The two sphincters

The anus’s outer (voluntary) and inner (involuntary) muscles. The inner one releases only with relaxation, which is why anal cannot be forced.

Fornix

The deep recess of the vagina around the cervix — the depth limit worth respecting rather than pressing hard into.

G-spot

A sensitive area on the front, belly-side wall of the vagina, a couple of inches in. A pressure-and-patience target.

P-spot (prostate)

A sensitive gland on the front wall a couple of inches inside the anus. The target in pegging, reached with steady pressure rather than depth.

Packing vs. play

Wearing a toy for presentation or spontaneity (packing) versus wearing a harness to penetrate someone (play). The negotiation, lube, and flared-base rule attach to play.

Non-porous vs. porous

Non-porous materials (silicone, glass, steel) can be fully sanitized and shared — either fully sanitized between people, or barrier-covered with the barrier changed between people; porous materials (jelly, TPE, PVC) cannot be sterilized and must be single-person and condom-covered.

Low rider

Positioning the harness and dildo lower on the crotch for a more natural stroke, and for added stimulation to the wearer.

Cross-contamination

Moving anal bacteria to a vagina or mouth — the cause of infections and UTIs, prevented by a fresh barrier or a thorough soap-and-water wash (hands scrubbed under the nails, a toy washed fully) between orifices. A quick rinse does not count; for a toy, a fresh barrier or full sanitizing is more reliable than a wash.