Right now it's just Twilight, with plans to bimbofy Cheerilee coming along.
Bimbofication scenes happen in the evening, with nobody else around, not even the player. The player still gets to see it though, because that's fun.
Step 1-5 of Twilight's bimbofied appearance can be found here: https://itch.io/t/93577/twilight-promo
It will go up to step 10, but we don't have art finalized for that yet.