Have your partner bind your wrists, either to the bed frame or above your head, while you lie in missionary position.
They should kneel between your legs and enter you from behind while your body is flat against the mattress, ground, kitchen table, wherever.
K is for Knife Play Knife play is, well, knife sex.
This variation is intended to be loaded from the front or side.
The Basic Chest Harness supports the chest and creates an ideal anchor point.
Plenty of other household items, like a scarf or a tie, can serve as great alternatives.
Clarifying boundaries including or can take a lot of the unknown out of the situation.
Voyeurs watch the exhibitionists and everyone wins.