It felt like I was sacrificing my wife, and at first, I wasn't keen on the idea... Of course, she wouldn't easily agree either. But when I persistently invited her, she said, "Just once...". When we actually went to the exchange party and saw her gasping while being held by another man, I was excited with jealousy. Moreover, as a male organ was mercilessly inserted into her anus, and every time she was penetrated by several men, she let out cries... I was on the verge of both wanting to cover my ears and getting aroused... it was bizarre. [Poster: Wooddeck-san]