rule 34 ai generated animal genitalia anus auction barefoot belly blue eyes bondage bondage gear bound collar digitigrade dinosaur erection feet feral free use genital slit genitals green body green scales harness humiliation legs tied male male only penis presenting presenting penis public public use raised tail reptile restrained scales scalie slave slit solo spread legs spreading standing starcofski tapering penis theropod tiny arms tyrannosaurid tyrannosaurus 9193702