A sexy brunette dressed only in a bra, which tightly restrains her big boobs, and yellow briefs, practices breath-holding. She lies down on the floor and breathes in a chest full of air. Her smooth, seductive tummy slides down, almost pressing into her back. Her young body now looks like a deep canyon of her cupped tits, her standing-out ribs, flowing smoothly into her pelvis. Her eyes and mouth are tightly closed, she holds on for a long time, but here her neat mouth opens, sucking in a stream of air, causing her belly to jump back out.