Rule 34 Dev - 3boys ball_sucking blush breath class_3-z collaborative_fellatio covering_mouth dual_persona erection fellatio gay gintama gintoki_sakata glasses guunaru hijikata_toshiro japanese_text kissing licking_penis male male_only mmm_threesome monochrome official_alternate_costume oral penis selfcest shaded_face sweat threesome yaoi|14210131240