There was one time that I almost told Claire about Thanksgiving — in fact I tried to tell her. It was one night just after sex when I was feeling particularly close to her. As I started to tell the story, Claire sat up straight; she pulled the sheet tight against her body and I backed away from what I was about to say. I changed it. I left out the kiss. And I just mentioned something about Jane brushing against me.

‘You were in her way and she was trying to get past you and not get to you,’ Claire said.

I didn’t mention that I felt the head of my cock pressing against my sister-in-law’s tight skirt, her hips, her thighs pressed together.

‘Only you would think she was making a pass,’ Claire said, disgusted.

‘Only me,’ I repeated.