1boy, 1girl, 4koma, apartment, ass, bed_sheet, black_hair, blush, breasts, clothed_male_nude_female, come_hither, comic, earth_(planet), english_text, glasses, greyscale, implied_sex, large_breasts, long_hair, meteor, monochrome, moon, naked_sheet, no_nipples, nude, planet, spiked_hair, they_had_lots_of_sex_afterwards, thought_bubble, towel, towel_around_neck, wrist_cutting