i dunno what "unbirthing" means, but this is a one of the sublime moments of the game. the girl got her body modified by a mad doctor, thus having a uber-anal, is worried of her boyfriend dumping her. However her boyfriend turns out to be a analomanic. He is now loading his head into her particular spot that he likes most(according to the game, he is "biting" the inner organs for more pleasure) instead of dumping her.
