Straddle your man (lying on his back) and slowly lower yourself onto his pelvis, sliding his penis inside you as you go. But rather than sitting down in a straddle position, raise yourself up off him in a squatting position. Put your hands on his thighs, stomach, rib cage or upper chest for support. Start by sliding yourself up and down his member by lifting your lower body up and down — a totally different motion than going forward and back like regular woman-on-top. Vary your pace, starting with some fast, teasingly shallow thrusts that touch only the tip of his penis, then move down into deep, slower thrusts that envelop him completely. The fabulous friction you'll create will give you the double bonus of amazing sensations all along the edge of your vaginal opening when you pump shallow and on your G-spot when you pump deep. And if you try leaning backward and resting your hands on his thighs and knees, the sensation will even spread to your clitoris — and the natural arching of your back will open up your body for him to fondle.
The fuel for the process leading to orgasm is testosterone, a hormone produced in steady supply by the testicles. The testicles also make millions of sperm each day, which mature and then are mixed with whitish, protein-rich fluids. These fluids nourish and support the sperm so they can live after ejaculation for a limited time. This mixture of fluid and sperm, known as semen, is what is moved through the urethra and out the penis during orgasm.
Oral sex may be performed as foreplay to incite sexual arousal before other sexual activities (such as vaginal or anal intercourse), or as an erotic and physically intimate act in its own right. Like most forms of sexual activity, oral sex can pose a risk for contracting sexually transmitted infections (STIs/STDs). However, the transmission risk for oral sex, especially HIV transmission, is significantly lower than for vaginal or anal sex.
Resolution and refraction After ejaculation, the penis begins to lose its erection. About half of the erection is lost immediately, and the rest fades soon after. Muscle tension fades, and the man may feel relaxed or drowsy, according to Ingber. Men usually must undergo a refractory period, or recovery phase, during which they cannot achieve another erection. This period is variable in men, says Ingber. In an 18-year-old, this is typically less than 15 minutes. In elderly men, it can be up to 10 to 20 hours. The average refractory period is about half an hour. Men differ from women in that men usually are satiated after one orgasm. Women can experience more than one orgasm with no loss of sexual arousal, and do not have to undergo a refractory period.