3boys afro argyle bad_id bad_pixiv_id beard belt black_hair blonde_hair brown_hair cardigan catherine_willows coat csi dress_shirt english facial_hair gil_grissom jewelry multiple_boys multiple_girls mustache necklace necktie nick_stokes princeps sara_sidle shirt t-shirt vest warrick_brown watch wristwatch  csi csi:_crime_scene_investigation fellatio female gil_grissom kappy lab laboratory male nick_stokes oral oral_sex porn_dialogue rule_34 sarah_sidle sex sketch straight threesome  crime_scene_investigation csi featured_image gil_grissom sara_sidle  beetle bug chibi csi csi_las_vegas gil_grissom insect lowres magnifying_glass male_focus nemurism solo