Rule 34 Dev - 2boys black_hair blush bowl_cut collarbone cum erection fellatio furu_(retr0e) hair half-closed_eyes heart long_sleeves male_only matsuno_ichimatsu multiple_boys open_clothes open_shirt oral osomatsu-kun osomatsu-san penis purple_eyes saliva shirt size_difference solo_focus veiny veiny_penis yaoi|2185610424