>>90432287Hands.
Grinding.
Magic:
>telekinesis (any oblong/vibrating object)>conjuring (see above, also could appeal to kink stuff if he summons chains)>morphing (either just growing a dick or into a form that has a dick, OR indulging any weird transformation fetish)>making a dick out of magical energy itself>snapping and suddenly they orgasm because it's magic, bitchMindcontrolling them into masturbating.
Possessing their body and masturbating and their ghost can feel it somehow (even though this isn't canon)
Some form of "sex" that he'd find erotic and they'd find his arousal erotic even though they're not turned on by the original thing (like an animal sacrifice, or advanced geometry).
Dirty talk that they can masturbate to.
Wet dreams in the Dreamscape.
Etc.
I'm not personally a fan of Bill and have never thought of this or read fic about him before but I love monster/magic fucking and he presents a ton of golden opportunities. I'm sure most of these people just make him a human and fuck that, though. Tragic waste.
