1boy, 1girl, akinaie, ass, blush, breasts, covered_navel, fate/grand_order, fate_(series), fujimaru_ritsuka_(male), greyscale, hetero, kukulkan_(fate), kukulkan_(second_ascension)_(fate), large_breasts, lips, monochrome, o3o, one_eye_closed, parted_lips, sharp_teeth, speech_bubble, teeth, thick_thighs, thighhighs, thighs, upper_body