Rule 34 Dev - 1girl akiyama_mio armpits arms_behind_head artistic_error barefoot black_hair blue_eyes blush breasts breath camisole cosplay embarrassed exercising feet female_focus full_body hirorin issho_ni_training k-on! legs nekono_matatabi parody polka_dot polka_dot_background short_shorts shorts sit-up soles solo sweat tears thighs toe-point toes trembling|1090176984