The Silk Spiral: head-to-feet position with her legs drawn up
The Silk Spiral is an inverted, head-to-feet position. She lies on her back and draws her legs, held together, up towards her chest. He lies face down in the opposite direction, with his head towards her feet, propped on his forearms, and presses his pelvis against her raised buttocks while his legs stretch out alongside her body. The penis enters at a reversed angle, so it calls for slow movements and care. There is no eye contact or kissing: it is a position to explore an unusual sensation rather than closeness.
Also known as: The Tight Vagina
Anatomy and biomechanics
She lies on her back with her legs together, knees bent and pulled towards her chest, which lifts her buttocks and tilts her pelvis upwards; she can hold on to his hips. He lies face down over her pelvis in the opposite direction: his head points towards her feet, he rests on both forearms, his chest is low and his knees or thighs rest on the surface beside her. His pelvis presses against her raised buttocks, and the penis has to bend against its natural direction to enter. With her legs together the entrance is narrower and penetration can be deep. He sets the rhythm with small hip movements. The load falls on her hips and lower back, which stay curled up, and on his forearms. There is no eye contact or kissing; body contact is limited to the pelvis and legs.
Why this position works
Some couples are curious about it because it is so different: the bodies lie in opposite directions and the angle of entry is reversed. With her legs together, some people notice a tighter, more intense sensation, though this varies from person to person. She can hold his hips to guide the rhythm. It is a position for exploring rather than for intimacy: you cannot see or kiss each other, and it is best kept short.
Variations of this position
Variation 1: her legs open in a V, easier entry
She opens her raised legs into a V instead of keeping them together, which makes entry easier and the sensation less tight.
Her knees stay drawn towards her chest, but she lets her legs part into a V. The entrance is wider, so entry needs less force and the angle feels less forced for him. The sensation is less tight than with her legs together. He can rest his torso between her legs.
- Start in the basic position, with her legs together and drawn up.
- He keeps still while she slowly opens her legs into a V.
- She can hold the backs of her thighs to keep her legs up without effort.
- Resume with short, slow movements.
Variation 2: cushion under her sacrum, less strain
A firm cushion under her lower back lifts her pelvis, eases the strain on her back and softens the angle for him.
The only change is a firm cushion or folded pillow under her sacrum. Her pelvis rises without her having to curl up as much, so her lower back works less. Her buttocks end up closer to his pelvis, and the penis has to bend a little less to enter. Penetration remains deep.
- She lies on her back and places a firm cushion under her sacrum.
- She draws her legs, held together, towards her chest without forcing them.
- He lies face down in the opposite direction, on his forearms, and brings his pelvis to her buttocks.
- He guides the penis in by hand and moves slowly.
Variation 3: she holds her knees to her chest
She wraps her hands around her knees to keep her legs tucked in, which steadies the position and lets her adjust the tightness.
Instead of holding his hips, she hugs her knees to her chest. Her legs stay firmly together without muscular effort, and she can bring them closer or further to change the tightness and depth. In exchange, she guides his rhythm less, so you need to talk more.
- From the basic position, she lets go of his hips.
- She wraps her arms around her knees and holds them against her chest.
- She brings her knees closer for a tighter sensation, or eases them away if it feels too deep.
- He keeps the movements short and asks her how it feels.
✓ Tips
- Get into position before penetrating: she raises her legs, he lies down in the opposite direction, and only then does he guide the penis in by hand.
- The penis enters bent against its natural direction: keep movements short and slow, never let it slip out and push back in blindly, and stop at once if he feels pain.
- Use lubricant: with her legs together the entrance is tighter.
- Penetration can be deep; she sets the limit by holding his hips, and you stop if there is pain.
- He keeps his weight on his forearms and knees, not on her legs or pelvis.
- If her lower back or hips ache from staying curled up, place a cushion under her sacrum or take breaks.
Key facts
- Interaction type
- Vaginal penetration in a head-to-feet position
- Active anatomy
- Penis
- Receptive anatomy
- Vagina
- Main stimulation
- Deep vaginal penetration at a reversed angle, with her legs together
- Setups and participants
- Couple · 2 people Hetero
Frequently asked questions
Is this position suitable for beginners?
Not really: the reversed angle needs coordination and care. It is better to try it once you know each other's bodies well, very slowly.
Is there a risk for the penis?
Yes. The penis enters bent against its natural direction, so short, controlled movements and stopping at the first sign of pain are essential.
Can we kiss or look at each other?
No: your heads are at opposite ends. If you want closeness, a face-to-face position will suit you better.
What if her back hurts?
A firm cushion under her sacrum takes pressure off the lower back. She can also lower her knees slightly away from her chest.
Safety and evidence
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.
Reviewed by the editorial team ·
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