That JAV

I've been married for a few years, I'm used to fighting with my wife, and it's been three weeks since she went back to her parents' house. While I was complaining alone, I received a phone call from Hibiki, a childhood friend. We talked about meeting after a long time, and I invited Hibiki to my home. As they reminisce, he pushes Hibiki down, perhaps out of frustration. Hibiki says no kissing... and I ask her what else she wants. He neither denied nor affirmed it with a flaming face. And then he says that if it's only 3cm, it's not cheating, and a warped unfaithful relationship begins....