FURVERT!

2010 all_fours ambiguous_penetration anthro anthro_penetrating anthro_penetrating_human anthro_top balls bent_over big_breasts big_penis bone bone_frill breasts butt butt_grab ceratopsian ceratopsid chasmosaurine dark_body dark_skin detailed_background dinosaur doggystyle eyes_closed female female_human flaccid foreskin frill_(anatomy)from_behind_position genitals group hand_on_butt human human_on_anthro human_penetrated humanoid_genitalia humanoid_penis interspecies lordstevie male male/female male_anthro mammal marginocephalian muscular nipples nude nude_anthro nude_male ornithischian outside penetration penis prehistoric prehistoric_species reptile saurischian scalie sex skull tail theropod triceratops tyrannosaurid tyrannosauroid tyrannosaurus tyrannosaurus_rex vein volcano