After feeling the twitch of the cock sandwiched against his ass, Frederic knew that the opportunity to masturbate was too good to pass up. Ever so gently, so as to not wake his host, he tensed the cheeks of his butt around the girthy rod, before untensing to the same, slow rhythm with which he began fingering his eager snatch. From their earlier session, his cum slick hole was absolutely gaping, and he massaged the puffy walls tenderly while swiping his index finger across his clit.