Rule 34 Dev - 2015 2boys ambiguous_gender android asgore_dreemurr boots boss_monster caprine clothing crown duo erection femboy footwear fur girly high_heels horn humanoid humanoid_penis humanoid_robot machine male mammal mettaton mettaton_ex penis pillow poster precum retracted_foreskin robot robot_humanoid shiroiyagi shoes size_difference uncut undertale video_games white_fur yaoi|3027614600