Rule 34 Dev - 2014 abs anthro ass back balls barbs biceps bioluminescence black_eyes black_skin blue_skin brown_skin ceratosaur ceratosaurid ceratosaurus claws couple cultmastersleet detailed_background dinosaur duo erection fangs frottage furry furry_only gay glowing glowing_eyes glowing_penis glowing_tongue hand_on_hip handjob humanoid_penis licking licking_lips looking_at_viewer male markings muscles mutual_masturbation nude pecs penis pose red_skin scales scalie sex sitting smile standing stripes teeth thaine thick_tail toned tongue tongue_out tyrannosaurus_rex white_skin yellow_eyes yellow_tongue|1886371224