2boys anal arm_support bangs bed_sheet bleeding blood blue_lock blush bottomless clothes_writing comic couple facing_to_the_side grabbing greyscale hair_between_eyes hand_on_another's_arm heavy_breathing highres himishiro isagi_yoichi itoshi_rin knee_up kneehighs kneeling layered_sleeves long_sleeves looking_at_another looking_away looking_down looking_up lying male_focus missionary monochrome multiple_boys no_shoes nosebleed on_back on_bed profile sex short_hair short_over_long_sleeves short_sleeves soccer_uniform socks sportswear sweat wiping_blood wiping_nose yaoi