During an earlier post from End, our new Mistress decided to show us images of every erotic and sexual thing, ever, and we each had an unique experience so real that we would swear that it actually happen.  It was merely an illusion, but it was so intense, so vivid, that it didn't matter, it had a VERY real effect on us all, so that's all it was.  My girl's thing was being given a rather intense sensation play session.  Being blindfolded, kissed, teased, scratched, ice, wax, the whole works.  Adelaide's thing was a bit more....messy lol.  My point remains though, you can describe whatever it was that makes your girl wet and weak in the knees, which inspires her to swear her loyalty to Mal, if that makes sense.