[Mama no Nioi (fundoshi)] Makeru ka Baka ga!! [DarklordMTLs] [Full Color]

A bored, busty mother's lazy afternoon turns into an endurance match when a dark-skinned young stud named Takashi challenges her to see who breaks first — and she refuses to be the one who falls. Sweaty, relentless rounds leave her ahegao-faced and dripping with nakadashi cum, but the real test arrives when her son Kota knocks at the door and she has to hold a conversation while Takashi remains buried deep inside her. Between her defiant "Like I'd lose, idiot!!" and his smug taunting that she still hasn't fallen, hidden sex becomes a contest neither of them wants to lose.