I was thinking about this yesterday, and came up with a theory I’ve never heard before that sounds more plausible to me than any of the ones I have heard: Given that penises are designed for suctioning out previous males’ semen, female orgasm with ‘ejaculation’ could be a countermeasure against that, by either putting a barrier between a preferred male’s semen and the suction effect of a later male’s penis, or by increasing the total volume of liquid containing a preferred male’s sperm so that a later male can’t suction it all.
I was thinking about this yesterday, and came up with a theory I’ve never heard before that sounds more plausible to me than any of the ones I have heard: Given that penises are designed for suctioning out previous males’ semen, female orgasm with ‘ejaculation’ could be a countermeasure against that, by either putting a barrier between a preferred male’s semen and the suction effect of a later male’s penis, or by increasing the total volume of liquid containing a preferred male’s sperm so that a later male can’t suction it all.
(Ew.)