OA study in The Journal of Sexual Medicine has found that you’re more likely to climax if you try different sex moves, rather than sticking to just a few. Here’s a list of techniques that guarantee an orgasm. Sit him down, and straddle one of his legs. As you make-out, rub your clitoris against his thigh. Take his penis in your mouth, and go all the way down on him. Get into standingdoggie position, take his hand and press it against your clitoris with your hand on top to ensure you get the exact pressure/ movement you need. Finish off things by moving your legs closer together—the extra-tight fit will make things more intense, pushing you both over the edge.