nun, babysitter and sugar mama are definitely something i'd enjoy but i'm sure owly can make everything hot.
Also here are some other ideas:
My schoolmate is a futanari
My rep teacher is a futanari
My stylist/hairdresser is a futanari
My Hostess is a futanari
My Waitress is a futanari
My CEO is a futanari
My secretary is a futanari
My librarian (not a nerdy one please, let's break stereotypes) is a futanari
My skater is a futanari
My Yoga teacher is a futanari
My office co-worker is a futanari
My Manager is a futanari
My receptionist is a futanari
My Instagrammer/blogger is a Futanari
My realtor is a futanari
My Journalist is a futanari
My Attorney is a futanari
My cousin is a futanari
My Aunt is a futanari
Obviously these are just my humble ideas. you're in charge so choice is yours😉