QUOTE
“The average erect penis ranges in length from 5.5 to 6.2 inches. To make your man’s penis seem bigger, get on top, tilt your pelvis in the direction that feels most pleasurable, and push down for greater depth. Or, in missionary, place your feet on his chest, which will make your vaginal canal feel shorter and better angle you for G-spot stimulation. When it comes to balls, size matters — to a point. In general, the larger a man’s testicles, the higher his testosterone level and the more sperm he’ll produce. But as long as they’re walnut size or bigger, they should get the job done.“
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Man-anatomy, Women’s Health