Re: private.
Since Michael's having fun airing all my shirt dirty laundry...
I was shadeless, he claimed he was a god. I didn't believe him since gods where I'm from should have been able to break us out of Derleth. I slept with him to confirm. Magic users where I'm from get a temporary power boost when we do.
The second time I needed to sleep with him in order to hold the Leo Blade to murder him. Unsurprisingly, we haven't slept together since.
As for what's the worst that could happen, he could violently torture and murder us all, take advantage of the reset and keep it up week after week if that's the sort of thing that he's into.