So, I've googled this a bit but haven't really found any definitive answer so I figured I would bring the question to you ladies...reminder this is TMI...but every time DH and I do the dance it feels like every bit of his sperm comes right out as soon as we are finished. Unless I elevate myself on pillows PRIOR to his climax, we can just hang up the idea of keeping it in there. I've read where women go to the bathroom and it falls out after and that just never happens with me unless I elevate my hips first. While I've read that it isn't essential to hold it in because sperm only needs a couple seconds...I'm curious to whether there has been research or studies conducted that show shorter/tilted/blocked etc female anatomy in relation to sperm retention?