Frottage (face-to-face grinding)

Description: Nothing is penetrated here, and that restraint is the register. The bodies take the standard missionary stack, face to face on a flat surface, and move in a sustained pelvic grind, clothed or unclothed, with sensation carried entirely by pressure and friction at the point of contact. It is the tease and outercourse member of the face-to-face family: structurally identical to its penetrative parent, categorically separate in act.

Variations: The convention ladder runs fully clothed (the classic dry-humping tease), underwear-only, and skin-to-skin; each step removes a layer without changing the mechanics.

On camera: It is shot exactly like missionary, in side profile or from overhead, and in softer-rated material it stands in for penetrative scenes entirely; the suggestive tier makes it usable where explicit content is not.

AI design considerations: Reproduce the missionary silhouette with unbroken full-length body contact; clothing state, not geometry, carries the meaning, so garment rendering and fabric compression at the contact point deserve the detail budget.