In the heat of the moment, an amateur's lust takes over, driving him to claim his friend in the most primal, carnal way. With her on all fours, he can't help but 'comer' - to devour - her silken folds, his tongue delving deep into her eager, quivering flesh. The 'de quatro' position leaves nothing to the imagination, only the unbridled, animalistic pleasure of two friends lost in the moment.