Rule 34 Dev - alien alien_humanoid anal anal_penetration anal_sex armpit armpits ben_10 ben_tennyson ben_tennyson_(omniverse) big_penis blue_skin brown_hair bulge comic comic_page cum cum_in_ass cum_inside gay green_eyes male male/male male_only married_couple married_sex nakamura_kikuharu rook_blonko striped_markings yaoi|7232921712