Princess stepped forward, her body moving to Buttercup's. She smirked, kneeling so she was kneeling over the pink powerpuff. She pulled her skirt up and freed her cock. Her hand reached up, pulling Buttercup's head down toward her long, hard cock.<br/><br/>"Go on buttercup. Suck on it. And enjoy the pleasure of your sister's tongue. Blossom... If you don't suck her, I break your pretty sister's neck. Then I go after your father. Do it, and keep going as I say, then I'll let you all go." she said, grinning. Buttercup's neck wouldn't snap easily but then again if they tried anything the professor couldn't defend himself from Princess' strength.