rule 34 2021 abs anthro biceps big abs big bulge big pecs biped body size growth bottle brown body brown fur brown hair bulge clothed clothing container dangaroo digital media artwork drinking potion english text eyewear fur glasses growth hair hi res huge biceps huge pecs huge thighs juano kangaroo macropod male mammal marsupial muscle growth muscular muscular anthro muscular male muscular thighs nipples partially clothed pecs portrait potion purple clothing purple underwear simple background size transformation solo standing tail text thick thighs topless transformation underwear underwear only 8768727