A group of wives from a women's association complain about their husbands not having sex with them on a regular basis, so they suggest a couple swap, thinking that if they switch partners, he might do it. The husband gets carried away by the glimpse of the wife next door's breasts and panties, and gets aroused until he has sex with her. The wife and the husband next door are also excited by what they see, so of course they have sex in another room. I'm so excited to see NTR happening right in front of me!