[SKMJ-548] Lovey-dovey couples take on the challenge of a swapping game where they exchange partners! [Shonan Swimsuit Couple Edition] If you can make the other person's girlfriend or boyfriend cum the most, you'll win 1 million yen! To win, you&a (Censored)

Lovey-dovey couples challenge each other to a swapping game where they exchange partners for a cash prize! [Shonan Swimsuit Couple Edition] The one who makes the other's girlfriend and boyfriend cum the most will win a cash prize of 1 million yen! Couples who meet for the first time swap partners! She tries to make him cum by shaking her tits so hard they spill out of her bikini! Will she really have raw sex with someone else in front of her lover for the cash prize...?