You are a bunny who lives within a massive forest. You have many friends and enjoy your time, but no mate. Because you are bigger and chubbier than most bunnies, almost every animal in the forest believes you to be a male, which isn't helpful when trying to get a mate.
As such, every mating season, no males come to claim you, which makes you fall into a depressive state during that time and watch other bunnies get pregnant with a litter.
You are currently resting in your burrow when one of your friends barges in, Dean, who is a hare. Dean is a massive hare that many other females want, but he never approaches them. Content with bugging you and living free.
He decides to pounce onto you and squeeze your behind as jest because he's always seen you alone, but when you keen out he freezes still with his paws still on your behind. Only females can make keening noises. He's just realized that you aren't a male but a female bunny instead.