Chapter 2294 Thanks, Sister-in-law(Taboo Sex):>Ep6

So there was Jack (Mary's husband, Andrea's brother, and my brother in law) standing in the doorway. I'm not sure how long he had been there, but he didn't look angry. Looking at the bulge in his pants, it seemed like he might have even liked what he had witnessed.
Mary was the first to break the silence, "Honey, you were right about these two. I still not sure how you knew what they had been up to."
"I'd could say that it was the way that they had look at each other when they're together, but I have a confession; Andrea and I have been screwing each other for years. Long before you and I were married. I wasn't sure how you'd react, but since you told me you wanted to spice up our sex life, I thought this was the best way."