Gosh tough call. Maybe Jules? She's canonically fucked monsters (mothman once) and now cursed were-roger. She likes a lotta things, sexy magic, toys, she'd let ya hit it from the back, def a lil thrill seeker-likes fooling around in places they shouldn't, got Roger into pegging (they save that for birthdays). Oh yeah-she did the amazon position on him one of the first times they fucked and he was blown away cause he'd never been fucked like that.
Jules likes to be dominating sometimes too, but not in like the bdsm sense (that's lars n mars thing) She does throw out calling Roger a 'good boy' on occasion and he likes it- a lot 9v9