I’m sorry for my earlier comment saying that it’s not very common for the biology of men to function in such a way that would allow for vaginal penetration. I don’t want to ask personal questions, but I’m still not sure if we are taking about raping a man via traditional sexual intercourse (penis in vagina) or if you’re referring to anal sex. Completely different physiological scenario. When I said something along the lines of “ultra rare for a woman to be able to rape a man, because a man needs an erection to penetrate a vagina, and being aroused is mainly a mental thing. If you’re mind isn’t into it (if you’re stressed, scared, threatened, or physically being hurt, I’m assuming it’s extremely rare to get an erection when your mind is focused on the traumatic experience you’re having). Women’s parts generally can still function regardless of mental state. Evolutionarily, that kinda makes sense. Refer to my other comment for the explanation. NOTE: I’m speaking in general terms. Like 93% of the time, that’s true. I’m sure there are some people with unique biology that don’t fit into that 93%. I’m assuming one of them is you, if you’re referring to ‘entering a vagina against your will’. I just wanted to clarify myself so I didn’t seem to marginalize you. I’m an evolutionary biologist and there are still some unknown factors and functions that are related to this issue.