rule 34 2023 abs anthro artist name ass back muscles biceps biped bodily fluids brown body brown fur brown stripes chief gilbert digital media artwork erection felid foreskin fur genital fluids genitals glans gunn chief gilbert hi res humanoid genitalia humanoid penis inside low angle view male mammal muscular muscular anthro muscular male muscular thighs nipples nude orange body orange fur pantherine pecs penis pictographics precum quads retracted foreskin signature solo striped body striped fur stripes tan body tan fur thick thighs tiger 7616829