Juliocesarbn presents a raw, sweaty encounter as a muscular brother, fueled by his gym session, can't resist his sister's advances. He towers over her, his massive, veiny biceps flexing as he pins her against the locker room wall. She gasps, feeling his throbbing cock press against her through his workout shorts. He rips off her sports bra, exposing her pert breasts, and she moans as he palms them roughly. Her fingers dig into his back, urging him on as he grinds his hips, dry-humping her until she's dripping wet. He spins her around, hiking up her skirt and tearing off her panties before burying his face in her ass, tongue-fucking her tight hole. She whimpers, clawing at the lockers as he stands, spinning her back to face him, and slams his thick, gym-slick cock deep into her waiting pussy.