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Physical effort: Medium Frontal

Venus's Anvil: deep missionary with the knees pulled to the chest

Venus's Anvil is a deep variation of the missionary. The receiving partner lies on their back and pulls their knees tight to their chest, with their feet close to the other person's shoulders; the penetrating partner kneels between their thighs and leans forward, supporting their weight on their fists on the bed. The folded hips tilt the pelvis upwards and allow very deep penetration while you face each other and can keep eye contact. Because it is so deep, it calls for a slow start and good communication.

Also known as: Anvil · The Anvil · Knees to chest

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Illustration of Venus's Anvil: The receiving partner lies on their back with knees pulled to the chest and feet by the other person's shoulders; the penetrating partner kneels between their t
Anatomy and biomechanics

The receiving partner lies on their back on the bed, with their back and buttocks on the mattress, and draws their knees up to their chest so their feet rest near the penetrating partner's shoulders. The penetrating partner kneels between their thighs, lower legs stretched out behind on the bed, and leans their torso forward, resting on closed fists on either side of the receiver's chest. The receiver's thighs end up between the two torsos, pressed against their own belly, and part of the penetrating partner's weight can fall on those legs. The penetrating partner sets the rhythm and depth from the hips. You face each other and can look into each other's eyes, but the folded legs keep your faces apart, so kissing is not really possible. The position asks for good hip flexibility from the receiver and some arm strength from the penetrating partner.

Why this position works

Some couples like it because folding the knees to the chest tilts the pelvis and allows deep penetration, which some people enjoy and others find too intense. You can watch each other's faces throughout, which helps you read reactions and adjust. It is also easy to reach from an ordinary missionary. Sensations vary from person to person.

Variations of this position

Variation 1: calves resting on the partner's shoulders

Same position, but instead of keeping their knees folded, the receiver straightens their legs a little and rests their calves on their partner's shoulders.

The receiver's hips stay flexed but the knees open out, so the legs rest on the penetrating partner's shoulders rather than being squeezed between your torsos. The penetrating partner can lean in a little closer, and there is less pressure on the receiver's belly, although the back of the thighs stretches more.

  1. Start in the basic Anvil, with the receiver's knees to their chest.
  2. The receiver straightens their legs slightly and places their calves on their partner's shoulders.
  3. The penetrating partner leans forward on their fists or palms, keeping their weight off the receiver's legs.
  4. Keep movements slow at first: the depth is similar to the basic position.

Variation 2: with a pillow under the receiver's hips

Same position with a firm pillow under the receiver's lower back and buttocks, which raises the pelvis and makes it easier to hold the knees to the chest.

Only the receiver's support changes. The pillow lifts the pelvis so the hips need to fold a little less to reach the same angle, which some people find easier on the lower back. The angle of penetration changes slightly, so it is worth adjusting depth again from the start.

  1. Place a firm pillow or a folded cushion where the receiver's lower back and buttocks will rest.
  2. The receiver lies back on it and pulls their knees towards their chest.
  3. The penetrating partner kneels between their thighs and leans forward on their fists or palms.
  4. Start with shallow movements and adjust the height of the pillow if needed.

Variation 3: the penetrating partner on the forearms, closer in

Same position, but the penetrating partner lowers onto their forearms instead of their fists, bringing their chest closer to the receiver's knees.

The penetrating partner's knees stay in place, but the upper body drops onto the forearms. This spares the wrists and makes movements shorter and slower, so penetration tends to be less deep. The penetrating partner must keep their weight on their forearms and knees so as not to press the receiver's legs into their belly.

  1. Start in the basic Anvil.
  2. The penetrating partner lowers from their fists onto their forearms, either side of the receiver's chest.
  3. The receiver keeps their knees to their chest or lets them open slightly to the sides.
  4. The penetrating partner moves with short, rocking movements, keeping their weight off the receiver's legs.

Variation 4: one knee to the chest, the other leg stretched out

Same position, but the receiver keeps only one knee to their chest and stretches the other leg out on the bed.

Only one hip stays fully flexed, so the pelvis tilts less and penetration is usually a little less deep. It is a good option if folding both legs is uncomfortable or tiring. The penetrating partner kneels astride the stretched leg, with their weight on their fists or palms.

  1. Start in the basic Anvil.
  2. The receiver lowers one leg and stretches it out on the bed.
  3. The penetrating partner shifts their knees so that one is on each side of the stretched leg.
  4. Switch legs whenever you like.

✓ Tips

  • Start shallow and slowly: with the hips this flexed, penetration goes deep and can hit the cervix and hurt. Stop or ease off if there is pain.
  • The penetrating partner should keep their weight on their fists or hands and knees, not on the receiver's folded legs; the receiver should be able to breathe comfortably.
  • The receiver can ease the stretch by letting their knees drop a little to the sides or by resting their feet on their partner's chest instead of the shoulders.
  • If the penetrating partner gets tired, they can rest on their palms instead of their fists to spare the wrists.
  • Avoid hard, fast thrusts from above: if the penis slips out and hits the body at an angle, it can bend and be injured.
  • Use lubricant if needed and a condom to protect against STIs and pregnancy.

Key facts

Interaction type
Deep vaginal sex, face to face
Active anatomy
Penis
Receptive anatomy
Vagina
Main stimulation
Vagina (deep penetration with the hips flexed)
Setups and participants
Couple · 2 people Hetero

Frequently asked questions

Is Venus's Anvil suitable for beginners?

It is a missionary variation, so it is easy to get into, but the depth can be intense. It is a good idea to try it once you know how the receiver feels with deep penetration.

Why can it feel so deep?

Pulling the knees to the chest tilts the pelvis upwards and shortens the distance to the end of the vagina. That is why it helps to start slowly and let the receiver guide the depth.

How can we make it more comfortable?

A cushion under the receiver's lower back, letting the knees open slightly, or having the penetrating partner rest on their palms a little closer all reduce the strain. Talk to each other as you go.

Is it suitable during pregnancy?

It is not recommended: the thighs press on the belly and part of the penetrating partner's weight may rest on them.

Safety and evidence 1 topic · 2 clinical and academic references

Scientific context for common terms used on this page. Keeping these terms makes the content easier to understand; the sources clarify what is established and what remains uncertain.

G-spot: what the evidence says

“G-spot” is a widely used term for a sensitive area of the anterior vaginal wall. Scientific literature has not established a discrete anatomical structure with an agreed location, size and nature; sensitivity and response can vary between individuals.

Sources
O'Connell HE, Sanjeevan KV, Hutson JM. Anatomy of the clitoris. The Journal of Urology. 2005. PubMed ↗
Vieira-Baptista P, et al. G-spot: Fact or Fiction? A Systematic Review. Sexual Medicine. 2021. PubMed ↗

Reviewed by the editorial team ·

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