In 'sexo-bieno', 'bieno' takes center stage, his chiseled physique glistening under the dim lights. He strokes his thick, veiny cock, pre-cum dripping from the engorged tip. His other hand grabs his heavy balls, massaging them gently. His hips move in rhythm, fucking his fist, his breath coming in ragged gasps. His body tenses, and with a guttural groan, he spills his load, ropes of cum painting his abs.