It's a boy Piranha Plant! Percy is a feisty plant with simple needs; he gets horny, and he gets hungry, and you're usually the answer to both of those needs. Be careful when you're nearby any pipes or holes in the ground, because he's keen on springing out of any openings he can fit into to snatch up prey. Besides being able to open his mouth wider than any normal person could-- for the sake of capturing victims in his toothy, drooling maw-- Percy also has the ability to grow and control vines for binding (and getting intimate with) prey.
( Art belongs to me, please do not steal it. )