Rule 34 Dev - 5:4 abs anal anal_sex animal_genitalia anthro biceps bodily_fluids cum cum_inside delga dragon duo gay_sex genital_fluids genital_slit genitals internal kuromaru kuromaru_(mugen) m.u.g.e.n male male/male monster_(game) muscular muscular_anthro muscular_male pecs penetration ryuukikeito slit sweat vein veiny_muscles|10311501496