Something similar to this is how I learned I was not a necrophiliac.

Many years ago, I was with a woman who was also prone to passing out. She warned me in advance, though, so it was no surprise. One time we were having sex and she had an intense orgasm, then lost consciousness. I didn’t notice at first so I kept going for a moment and then realized she wasn’t moving…like at all.

It feels really weird having sex with a body where no one’s home so I immediately stopped.

So I have literally fucked someone so hard they passed out. Heh.

I just positioned her limbs in a way that seemed comfortable and a couple of minutes later she woke up, so we kept going.