koutaro, minazuki izumi, tropical kiss, game cg, 10s, 1boy, 1girl, all fours, ass, bent over, bikini, blush, breasts, brown hair, casual one-piece swimsuit, censored, clothes pull, clothing aside, doggystyle, from behind, green eyes, hetero, long hair, looking back, medium breasts, mixed-sex bathing, mosaic censoring, nipples, one-piece swimsuit, onsen, penis, pussy, pussy juice, sex, sex from behind, shared bathing, shirt pull, solo focus, steam, swimsuit, swimsuit aside, vaginal, water