FURVERT!

1:1 2016 alternate_universe animated_skeleton blue_eyes blue_penis bone clothing erection genitals glowing glowing_genitalia glowing_penis humanoid_genitalia humanoid_penis imminent_sex lizheru male not_furry one_eye_closed penis piercing riding_crop sans_(undertale)skeleton smile solo swapfell tongue tongue_piercing undead underswap undertale undertale_(series)whip wink