The Ota couple moved in next door to where I live with my wife Minaho. As the wives are best friends, we held a welcome party for them. During the party, Minaho and her friends got excited as documentaries about couple swapping were all the rage. While I was scornful and told her it was all staged, Minaho was keen on the couple swapping, as the Ota house is much bigger than ours. I remained adamant that it was a no-go, but I gave in to Minaho who wouldn't listen to me, and we ended up swapping wives for three days...