If your a girl, usually by .. Licking her vagina, and sucking on her nipple as a girl i love those things even a little biting can lead to an orgasm, when you are licking out a girl make sure to look up at her the tension between you will rise & it will feel much sexier. If it were a boy, usually play with his hair and getting down in his private area ;) gently sucking on the tip of the penis gives my boyfriend pleasure. Deep throat his penis & basically do anything to turn each other on. Have fun! ;)
it is when you reach your sexual climax ( E.G. Ejaculating or having a high increase of vaginal mucus)