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Physical effort: Low Posterior

The Magic Mountain: face down from behind, propped on her forearms

The Magic Mountain is a rear-entry position with the receiving partner lying face down. She props her upper body on her forearms and hands, like a sphinx, with her legs stretched out behind her and close together. He kneels upright astride her thighs, with his hands on her lower back, and sets the rhythm. Penetration can be vaginal or anal. It takes little effort, but her lower back arches, so it is worth adjusting how high she lifts her chest.

Also known as: Magic Mountain · Prone bone · Lying-down doggy

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Illustration of The Magic Mountain: She lies face down with her upper body propped on her forearms and her legs stretched out together, while he kneels upright astride her thighs and enters from b
Anatomy and biomechanics

She lies on her stomach on the bed or floor, head forward, with her upper body raised on her forearms and palms and her back gently arched. Her pelvis and legs rest on the surface, legs straight and close together between his knees; she can bend one if she wants. He kneels upright astride her thighs, knees on either side of her legs and torso vertical, with both hands resting on her lower back. He controls the rhythm, and penetration, vaginal or anal, is of medium depth. Her abdomen and pelvis are pressed against the surface. You cannot see each other's faces; contact is limited to the pelvis, thighs and his hands on her back. The main loads are on her lower back, from the arch, and on his knees.

Why this position works

Some couples like it because it is easy to get into and takes little effort. With her legs together, the fit feels snug, and some people find that sensation intense. He has his hands free on her back and hips and sets the pace, while she can relax her chest down whenever she wants. How it feels varies from person to person.

Relaxation and Surrender Complete Rhythm Control Easy Penis-Anus Configuration Penis-Vagina Configuration

Variations of this position

Variation 1: her chest resting on the bed

She stops propping herself up and rests her chest and head on the bed or on her folded arms; he stays kneeling astride her thighs.

Lowering the chest removes the arch in her lower back, so it is more comfortable if her back bothers her. Her pelvis lies a little flatter and the angle shifts slightly.

  1. Start from the base position.
  2. She slowly lowers her chest onto the bed or her folded arms.
  3. She can turn her head to one side to breathe comfortably.
  4. He adjusts his knees to keep the angle.

Variation 2: with a pile of pillows under her chest

She rests her chest and arms on a pile of firm pillows instead of propping herself up on her forearms; he stays kneeling behind her.

The pillows hold her upper body at the same height as in the base position, but without effort from her arms or a forced arch in her lower back. This is the version most often linked to the name.

  1. Stack two or three firm pillows in front of her.
  2. She lies face down and rests her chest and arms on the pile.
  3. He kneels astride her thighs, as in the base position.
  4. Adjust the height of the pillows until her back is comfortable.

Variation 3: with a pillow under her pelvis

The same as the base position, but with a firm pillow under her pelvis that lifts her hips slightly.

The pillow raises her hips and reduces how much her lower back has to arch to offer the angle. Entry is easier for him, and the pressure on her abdomen is spread out.

  1. She lies face down with a firm pillow under her pelvis.
  2. She props herself up on her forearms only as much as feels comfortable.
  3. He kneels astride her thighs.
  4. Try different pillow heights until you find the angle.

Variation 4: her legs apart with him kneeling between them

She spreads her legs on the bed and he kneels between them instead of astride her thighs.

With her legs apart the fit is less snug and penetration can be a little deeper. He is closer to her pelvis and can rest his hands on the bed on either side of her.

  1. She lies face down and spreads her legs to a comfortable width.
  2. He kneels between her legs.
  3. He rests his hands on her hips or on the bed.
  4. Start slowly, as the angle can be deeper.

✓ Tips
  • If her lower back gets tired from the arch, she can lower her chest onto her forearms or rest on a pillow.
  • He should not drop his weight onto her thighs; he keeps it on his knees, with a soft surface underneath.
  • Go slowly: with her legs together the angle is tight, and if the penis slips out and hits her body it can bend. Stop if there is pain.
  • For anal sex, use plenty of lubricant, a condom and go slowly.
  • Use a condom to protect against STIs, and change it if you switch from anal to vaginal.
  • A pillow under her pelvis changes the angle and may make it more comfortable.
Interaction type
Vaginal or anal penetration from behind, with the receiving partner face down
Active anatomy
Penis
Receptive anatomy
Vagina or anus
Main stimulation
Vaginal or anal penetration from behind, lying face down
Setups and participants
Couple · 2 people HeteroLesbian

Frequently asked questions

Is it hard on the back?

It can be: propping up on the forearms arches the lower back. If it bothers her, she can rest her chest down or on pillows.

Who controls the rhythm?

Mainly him, as he is kneeling and free to move. She can guide him by asking him to go slower or by lifting her hips slightly.

Can it be used for anal sex?

Yes, with plenty of lubricant, a condom and going slowly. Do not switch to vaginal without changing the condom.

Where do the pillows come in?

The well-known version uses a pile of pillows under the chest. Here they are optional: see variation 2.

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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