Show her now to please you.(Cosmo for your guy)

* Regardless of how good your girlfriend is in the sack, sometimes you may need her to do things a little harder or softer or, you know, move around more. But how do you tell her that without hurting her feelings? Or losing sex privileges for weeks? We give you some tactful ways to get her on the fight track.

Give Her the Good With the Bad

Before pointing out where she's lacking in the love department, give her some positive reinforcement. "The minute a woman hears negative feedback, she gets uncomfortable and feels like she's done something wrong, which makes her reluctant to initiate anything ever again," says Wendy Kyman, PhD, sexuality therapist and associate professor of human sexuality at Baruch College in NYC. "Soften the blow by prefacing the criticism with a compliment about what she's doing right." Repeat 'after us: "That feels so amazing. I'd love it if you used your hand even more."

Don't Wait Too Long

Your girlfriend's working away, doing her 'damnedest to get you off. Meanwhile, you keep thinking If only she'd.... Speak up now or forever hold your peace, buddy. When you allow those thoughts to go on for more than five minutes and then tell her to change things up, it's too late. Part of her brain suddenly wonders if you've spent 'all that time thinking God, will ...