A muscle-bound twink, new to the joys of anal, tentatively pushes a finger into his tight, virgin ass. His massive, throbbing cock aches in his hand, pre-cum dripping as he jerks off, overwhelmed by the intense, forbidden pleasure. His loud, guttural moans echo as he finger-fucks his hole, feeling his straight-lad limits crumble. With a final, desperate stroke, he cum's hard, his finger still stuffed deep, marking his first foray into bisexual bliss.