Wow that would suck! I have dissociated during drunken sex which wasnt always exactly consensual but never during sex with someone I was interested in, or with the man I love.

It actually grounds me. I never feel more "in the moment" than I do when I am having sex. I just wouldnt do it if I was dissociating. It would be distressing, whats the point?

This is something to talk to the T about, I bet they would have some ideas.