[Reducing Mosaic]JUR-145 I've been in a friends-with-benefits relationship with my son's friend for five years now. Indulging in illicit affairs with the younger guy... I'm addicted to bareback sex. Mariko Koto

Congratulations on your graduation, just like five years ago… My son's friend, Kitayama-kun, and I have been in a casual relationship for five years now. It started five years ago when my husband's infidelity was exposed; Kitayama-kun comforted me with a gentle kiss as I was feeling down. To avoid interfering with both of our exams, we waited until the day of the graduation ceremony to do it. Then, responding to Kitayama-kun's feelings, we had our first physical relationship. For five years since then, we've been secretly meeting behind my husband and son's backs, but things changed when Kitayama-kun got a girlfriend…