1boy, abs, bara, chalkboard, completely_nude, english_text, feet_out_of_frame, flaccid, indoors, large_pectorals, male_focus, male_pubic_hair, mature_male, muscular, muscular_male, navel, nipples, nude, pectorals, penis, pubic_hair, short_hair, solo, spread_legs, stomach, teacher, thick_thighs, thighs, veins, veiny_penis