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#377 Adventure Medium

Caliper

Measure and adjust with precision in this measured position.

Medically Reviewed by Dr. James Chen, Board-Certified OB/GYN
Caliper sex position illustration - Measure and adjust with precision in this measured position.
Penetration: Deep
Stimulation: G-spot & Deep spot

About This Position

The receiving partner lies on their back with legs held together tightly while the penetrating partner enters from above. The tight leg positioning creates a precise, measured fit, like a caliper measuring exact dimensions.

Best For

Tight fitPrecise stimulationControlled depth

Anatomy & Physiology

Muscle Groups Involved

  • Glutes
  • Hip flexors
  • Core
  • Inner thighs

Angle of Penetration

Deep penetration, angle varies with positioning

Targeted Pleasure Zones

G-spotDeep spotAnterior wallAnterior vaginal wall

Body Contact Points

Chest to chestPelvis to pelvisHands on hips or chestFace to face

Step-by-Step Guide

1

The receiving partner lies on their back and presses their legs together tightly — like calipers measuring precise dimensions, the compressed legs create an exact, measured fit.

2

The penetrating partner positions themselves above, entering between the tightly pressed legs — the squeezed inner thighs create a narrow, precise passage along both vaginal walls.

3

Begin with slow, controlled thrusts that measure each millimeter of depth — the caliper metaphor means precision and deliberate, measured movement.

4

The receiving partner can adjust the leg tightness to calibrate the sensation: tighter legs increase pressure on the G-spot and deep spot; looser legs allow deeper, more measured entry.

5

The penetrating partner uses small, precise hip movements rather than wide thrusts — the caliper position rewards exact, controlled motion over range of movement.

6

Focus on the measured, precise quality of each movement — the tight leg configuration amplifies every subtle shift in angle and depth.

Safety & Precautions

Warnings

  • ! Communicate with your partner about comfort throughout.

Modifications

  • * Use pillows for support and comfort.
  • * Adjust the angle or depth based on your partner's feedback.
Flexibility: Medium Joint Stress: None Pregnancy Safe

Generally safe during pregnancy — adjust depth and pace for comfort.

Medical References & Sources

The information on this page has been reviewed for accuracy by certified health professionals. The following peer-reviewed and authoritative sources were used in developing this guide:

Health Disclaimer: Always consult a healthcare professional before trying new positions, especially if you have back pain, joint issues, are pregnant, or have any medical condition. Stop immediately if you experience pain.

Pros

  • + Creates a tight, intense fit
  • + Precise stimulation
  • + Great for G-spot pressure
  • + Allows controlled depth

Cons

  • - Can be too tight for some
  • - Limited movement
  • - Requires leg strength to maintain

Tips

  • * Adjust leg tightness for desired intensity
  • * Use lubricant for comfort

Common Mistakes to Avoid

Even with the right technique, small errors can reduce pleasure or increase injury risk. Here are the most common mistakes couples make with the Caliper position:

Opening the legs too wide

The caliper's defining feature is the tight, measured leg compression. Opening the legs wide turns it into standard missionary and loses the precise, calibrated fit.

Thrusting with wide, sweeping motions

The tight leg passage doesn't accommodate wide thrusts. Small, precise hip movements are what the caliper position rewards — precision over range.

Not using enough lubricant

The compressed legs create significant friction. Generous lubricant is essential for maintaining the slow, measured pace without discomfort.

Ignoring the tightness adjustment

The receiving partner can calibrate the sensation by adjusting leg tightness. Staying at one tension level throughout misses the precision-control aspect.

Variations to Try

Once you've mastered the basic Caliper, these variations can add new sensations and keep things exciting:

1

Add a Pillow

Place a pillow under the receiving partner's hips to change the angle of penetration and enhance stimulation.

2

Incorporate Manual Stimulation

Use hands to add clitoral or other external stimulation during the position for enhanced pleasure.

3

Slow Down the Pace

Switch from thrusting to grinding for a more intimate, sensation-focused experience.

4

Try Different Surfaces

Move from the bed to a couch, standing, or against a wall for different angles and experiences.

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SM

Written by Dr. Sarah Mitchell

Certified Sex Therapist, PhD in Human Sexuality

JC

Reviewed by Dr. James Chen

Board-Certified OB/GYN, 15+ Years Experience

Last reviewed: July 2026 | Content medically verified | Meet our full team

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