Physical effort: Low Adapted

The Edge of the Bed: comfort and perfect angle

An ergonomic trick that seems designed by a physiotherapist. The receiver lies down with the pelvis at the edge of the bed and the penetrator stands: zero lumbar effort and an angle that adjusts at will.

Also known as: edge of bed · the waterfall · edge of bed · al filo de la cama

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Generating image of the sex position The Edge of the Bed (The Waterfall)

Key facts

Interaction type
Penetration with receiver on the edge, partner standing
Active anatomy
Pénis
Receptive anatomy
Vagin / Anus
Main stimulation
Anterior wall / Deep / Adjustable
Participants
2

Anatomy and biomechanics

The receiver rests in a supine position with the pelvis at the edge of the mattress, which eliminates lumbar effort and body weight on top. The penetrator, standing at the edge, controls the angle with the height and the position of the partner's legs (extended, on the shoulders, open). It's the basis of the family of adapted ergonomics.

Why this position works

Combines total comfort for the receiver (lying down, without carrying weight) with absolute control of the angle for the penetrator (standing, with hands free). The height of the bed does the work of aligning the hips, so it works with almost any biometry. It's comfortable, versatile, and allows countless variations depending on where the legs go.

Variations of this position

1. Legs on the shoulders: more depth

The receiver at the edge with legs supported on the shoulders of the standing partner.

The receiver supports their legs on the partner's shoulders. Increases depth while maintaining comfort at the edge.

  1. From the edge, lift your legs towards your partner's shoulders.
  2. The penetrator approaches the edge.
  3. Regulate the depth with the tilt.

2. Legs in a V: wider opening

The receiver is on the edge with their legs open in a V, held by the person standing.

The receiver opens their legs in a V, held by their partner. Changes the angle and facilitates clitoral stimulation.

  1. From the edge, open your legs in a V.
  2. The person penetrating holds them by the ankles or thighs.
  3. Take the opportunity to stimulate the clitoris with your hand.

3. The Waterfall: lean the torso downward

The receiver with the pelvis highly elevated at the edge and the torso slightly leaned downward.

The receiver gently slides the torso and head downward from the edge, raising the pelvis even higher. Intense angle; do it carefully and for a short time.

  1. From the edge, slide the torso a bit downward from the mattress.
  2. The pelvis remains more elevated.
  3. Maintain for a short time and return to the neutral position if it bothers.

Setups and participants

Couple · 2 people base setup

  • Gay Most common
  • Hetero Most common
  • Lesbienne Most common

Frequently asked questions

Why is it so comfortable?

The receiver doesn't bear weight and doesn't strain the back; the penetrator doesn't balance.

Is it suitable for lumbar pain or reduced mobility?

It's one of the most recommended for that very reason: minimal joint effort.

What if the bed is too high or low?

Adjust with pillows under the pelvis or changing the surface; the key is aligning the hips.

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Sources and references

  • Literatura de sexología clínica y ergonomía sexual

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