rule 34 alternate version at source anthro anus balls belly blue body blue markings brown balls brown body claws dannydregorak dark glans darkened genitalia dinosaur dominant dominant anthro dominant male dragon duo facial hair foreskin frank motta gaping genitals glans goatee green body green markings hair hi res horn humanoid genitalia humanoid penis leg grab long tongue male malemale markings musclegut muscular muscular anthro muscular male nipples partially retracted foreskin pecs penis pink glans pink nipples puffy anus purple eyes purple glans red hair reptile scale markings scales scalie sideburns size difference slim small dom big sub submissive submissive male teeth theropod tongue tongue out trick rex character tyrannosaurid tyrannosaurus tyrannosaurus rex western dragon yellow horn 7263241