My (31M) wife me cum with her sister in the room [FFM]

My wife is an immigrant and lives with me here in the US. Her sister has a tourist visa and visits us sometimes.

Two years ago, we took a trip to the beach. Both my wife and sister in law looked super hot in their swimsuits. I loved seeing guys look at my wife’s ass hanging out, and loved finally getting to see my SIL’s body without much clothes on.

We shared a hotel room, but had separate beds. One night, we were all sober so alcohol is no an excuse, but when we turned the lights off to sleep, my wife started touching me. This was like 4 mins after we all decided to sleep, so no way my sister in law was already asleep.

It was so hot and I was so hard. My wife definitely initiated it and I knew she really wanted me to cum. I know when she touches me just to please me, and when she does stuff cuz she’s turned on. It was definitely her idea and I came all over the sheets.