Erotic instructions: Facing the faucet, kneel in a tub that's half-filled with warm water. Lean forward and hold the walls or sides of the tub for balance; your guy can climb in and penetrate you from behind. As you grind, use your hand to guide the water stream from the faucet between your legs or use a detachable showerhead.

Pleasure payoff: This sex style is great for girls who don't always orgasm easily: Your man has prime G-spot access, while the supersensual water spray electrifies your external passion button. And with your bodies meshed tightly in the tub, your guy can play with your breasts and stroke you below the belt,says Tracy, 26.