The Box

Classic face-to-face frame with legs enclosing the partner. Ideal base for tempo control, eye contact, and depth negotiation.

Inserting / supporting3/5

Receiving / driving2/5

Consent, respect, and the right to stop are non-negotiable. Standards

Setup

1. Face-to-face: stack spines first, then close the gap. The inserting partner is usually the base — knees, elbows, and a clear exit path before any drive.
2. Build The Box (Samputa) from the diagram: Base over receiver: elbows beside the ribs, not locking the shoulders.
3. Workload is 3/5 (inserting / supporting) and 2/5 (receiving / driving). Stay inside a range you can exit cleanly — difficulty 1/5, intensity 2/5.
4. Lube the Box at first contact — water-based with latex, hybrid if no barrier and the set will run. Reapply before tack, not after a dry catch. Friction or pain = stop.

Lube

Lube the Box at first contact — water-based with latex, hybrid if no barrier and the set will run. Reapply before tack, not after a dry catch. Friction or pain = stop.

Stimulation

Anterior wall and optional pubic-bone clitoral contact are in this frame if the receiving partner wants them. Both partners keep a free hand for extra clitoral or perineal work. Inserting partner drives depth; receiving partner owns the enclose.

Three cues

· Anterior wall and optional pubic-bone clitoral contact are in this frame if the receiving partner wants them. Both partners keep a free hand for extra clitoral or perineal work. Inserting partner drives depth; receiving partner owns the enclose.
· Base over receiver: elbows beside the ribs, not locking the shoulders.
· Check depth every change

Two common faults

· Locking elbows and dumping into the receiver's shoulders.
· Chasing depth before spines are stacked and the exit is clear.

Abort

· If the receiving partner cannot unhook the enclose, freeze and open the legs — do not wait for a prettier exit. Locked-elbow shoulder burn on the inserting partner is an abort, not a hold.
· Stop for sharp pain, numbness, panic-adjacent breath, or a spoken / non-verbal stop — no debate.
· Either person can freeze the set. Resume only after both are green.
· Low joint stress.

The Box at RPE 3

One position-specific drill · RPE 3

Both people build The Box from the diagram for 45 seconds at RPE 3: no drive, just stance, breath, and a spoken stop. If you cannot exit cleanly, drop a pillow or a range — do not add gym work.

Variations

· Feet elevated
· Pillow under hips
· Slow-tempo only constraint

Progressions

· Add isometric pauses
· Single-leg variation
· Tempo ladder 3-1-3

Partner communication cues

· Check depth every change
· Use 1–10 scale
· Agree on pause word

Load / intensity modifiers

· Reduce ROM for control focus
· Add bodyweight isometric for strength

Notes & comments

Private to this device — log what worked, cues, or partner feedback.

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