Maybe because the vagina is so big and deep, it makes them feel a bit better about their size (not size-shaming, just saying) if they do the deed. Maybe the muscles are different too? I don't know horse biology
Maybe because the vagina is so big and deep, it makes them feel a bit better about their size (not size-shaming, just saying) if they do the deed. Maybe the muscles are different too? I don't know horse biology