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What happens to the sperm if the man finished inside you during anal sex? If it doesn't come out...does it just stay in there forever?
Sarah: Actually, if you let it stay up in there, your body absorbs a little bit of that partner’s DNA and for 72 hours afterward, you look like them just a little bit. You know how they say some couples look like each other after being together for a while? Well, now you know it’s the couples who do it in the butt more often. It’s just science, really.*
Debby: For some reason this brought to mind an unusual image of sperm setting up house, Bearenstein Bear style (like in a tree, but it’s an anus) and that does not happen. Things - including sperm - can and do leave the anus. Gravity can work wonders on semen ejaculated into an anus or vagina. So nope… it’s not in there forever.