I just realized that guys don't have vaginas, so I mean where does the penis go? The penis is too small of a hole to put a penis in so if you tried to put a penis in a penis your penis would have to be pretty tiny I mean a penis that tiny would have to be like less than half the size of a normal penis. It can't be the butt cause the butt isn't a sex organ so it has to be the penis. How do they get the penis inside the penis and what happens if they pee while someone's in the penis I mean this is a confusing subject to me so tell me about how you would fit a penis inside a penis. I need like engineering level answers so please include all steps of your mathematics and cite your sources.