FURVERT!

abs avian black_body black_feathers black_penis blush bodily_fluids clothing darkner deltarune disembodied_hand duo erection feathers genital_fluids genitals hi_res humanoid_genitalia humanoid_penis male mask mostly_nude muscular muscular_male nipples pecs penis precum quads red_eyes shinobiya sparkles straps swatchling undertale_(series)underwear vein veiny_penis