rule 34 2021 ambiguous gender angry anthro belly biceps blush bodily fluids bovid bovine bulge cattle clothed clothing cross popping vein duo erection erection under clothing fist fur genital fluids grey body grey ears grey fur horn male maleambiguous male focus mammal musclegut navel nipple fetish nipple pinch nipple play nipples nullraihigi overweight overweight anthro overweight male pictographics pinch pink nipples precum precum through clothing precum through underwear solo focus speech bubble underwear underwear only wet wet clothing 5135407