fuji norihiro, shameimaru aya, touhou, commentary, paid reward available, variant set, 1girl, 1other, :d, all fours, armpit crease, aroused, black hair, black wings, blush, breasts, cleavage, collarbone, completely nude, convenient arm, dutch angle, feathered wings, girl on top, groin, hair between eyes, heavy breathing, implied sex, indoors, large breasts, looking at viewer, medium hair, morning, motion lines, nipples, nose blush, nude, open mouth, puff of air, red eyes, sidelighting, smile, solo focus, sweat, tsurime, twitching, window, wings