Rule 34 Dev - 2boys aipeco18 androgynous boots bulge closed_eyes comic comic_page erection_under_clothes femboy femboy_on_femboy frisk gay hand_under_clothes high_heel_boots high_heels human male male_only mettaton mettaton_ex robot robot_femboy robot_humanoid thigh_boots thighhigh_boots undertale undressing yaoi|5305909112