Erotic instructions: Since discovering this position with her boyfriend, Alexa, 19, has made it a permanent part of her passion repertoire: Bend forward with your legs slightly spread and your arms either hanging loose in front of you or resting on a low chair for balance, she says. Your guy enters you from behind, pulling himself as close to you as possible while holding your torso for support.

Pleasure payoff: This scorching spin on doggy-style is perfect for I-need-you-now quickies. Being bent over gives your guy maximum depth and control, praises Alexa, and the angle allows access to your G-spot. And unlike typical rear-entry action that can leave you feeling disconnected from your dude, your pelvises and thighs touch, making the move more intimate. Booty bonus: Urge him to stay still while you grind your behind in circles.