I would say probably variety. I'm very open minded and kinky while she's more vanilla. Can sometimes get frustrating when I'm really horned up and wanting to get kinky but her kinkiest thought is doing doggystyle. We've been introducing some bondage, gags, buttplugs, sex-slave roleplay, etc that's starting to really help spice things up but it can still be kinda tough to get her to buy into doing that stuff sometimes still.