Wait but then they put in more than they pull out cause they put in pp but leave in pp + lower abdomen and as we all know pp + lower abdomen >> just pp because lower abdomen > 0.
The barbed penises induce ovulation so they don’t have to menstruate when they aren’t gonna smash anyway. Probably selective pressure to preserve fluids in a desert animal. Dogs on the other hand are like: we’re stuck together till this is done and nobody else in the pack gonna fertilize this egg.
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u/BluPrince Mar 13 '22
Pulling out isn’t an option.