Dunno if that video from election night is still up on youtube, but check it out if it is. Think it was just before (or just after?) his speech. It was an extended 'hug', with his hands kind of moving in a questionable place, then the camera zoomed in on her expression...

The hand placement and expression were real. I can't verify she actually experienced an orgasm, but I've seen a ton of their 'daddy & daughter' pics.