1boy, 1girl, all_fours, bed, blush, breasts, couple, demeter_(fate), fate/grand_order, fate_(series), fujimaru_ritsuka_(male), greyscale, hair_ornament, hetero, husband_and_wife, kiss, large_breasts, laurel_crown, light_blush, lying, monochrome, on_back, sleeveless, winterbigfoot