Condescension ideas?

hi! my (30f) gf (28f) is usually dominant with me, but we want to switch it up a little from time to time. she told me she’d like me to be condescending to her during sex, subtly and playfully reminding her who’s in charge. some ideas so far are me saying stuff like “you’re trying so hard, aren’t you”, making her talk and mocking her a bit when she struggles to speak properly, things like that. can you help me with ideas? she’s more into gentler, subtler things than me