1boy, armpits, bara, beard, clothes_pull, facial_hair, feet_out_of_frame, groin, horikwawataru, large_pectorals, lying, male_focus, muscular, muscular_male, nipples, on_back, original, pants, pants_pull, pectorals, short_hair, sideburns, solo, stomach, stubble, thick_eyebrows, topless_male, unfinished