Here is the full list of all 18 Fair Princess Under Futa Curse achievements.
Fun with the queen
Fun with the maid
My feet
Fun with the nurse
Audience with the common folk
Understanding poetry
Like animals!
Loving myself
Take care
Fun with the tutor
Fun with the gardener
Finally, underwear!
Forbidden kiss with Selena
Queen's instructions
Punishment for not being obedient
Priestess and her lessons
Game ended too soon!
I've been cursed!