unlike other cursed classes, bunny is not as forced as others it seems, that change your class when equip a girl with thre of their items , i've equiped more than three with no changes on a girl's classAre bunny girls the same as pets (pet class)? I have some bunny girl equipment, but I don't see the class for them. Maybe I have not unlocked them yet.
also can find some ratskin taverns that certain girls (depends on their personality) can interact positively with barman, ask for rounds (paying) and maybe get bunny equipment for free.. and the class too
regardless that having the class or not, you can put anyone to wench task (same as pet), but with less bonuses.. those will depend on bunny equipment worn
also is good to try to infinite items, check on your quest list (novice for starters) for prize item, that will be your reward once you reach the end, there is no need to kill everyone.. once you have 4 of same uncursed items, they go infinite and have them available for all and free to drop if need space to move on