momosuke (user pupa3454), fujimaru ritsuka (male), melusine (fate), fate/grand order, fate (series), highres, armpits, arms up, black hair, breasts, censored, command spell, completely nude, grey hair, hand on another's hip, licking lips, long hair, medium breasts, mosaic censoring, navel, nipples, nude, reverse upright straddle, sex, sex from behind, short hair, tongue, tongue out, vaginal, yellow eyes