My partner has indicated an interest in trying out baby stuff... wearing a diaper, having a bottle, etc. We haven't discussed it in depth yet or tried it out but she seems excited and, though it doesn't turn me on, it's not a turn off and I want to help her explore her sexuality and us grow as sexual partners and a couple.

I just don't really know where to begin here, or how to make it fun for her. She mentioned diapers and bottles, but... I don't know? If you enjoy baby stuff, what do you recommend trying out?

(The baby stuff is a little bit in the context of dominance and submission, and I think a lot just exploring how she and I feel about it all. We've never done ageplay before, and while we're both consenting adults in our 20s, it's new and a little scary.)