My friend had sex with my sister while on vacation with my family

This is a true story from back in 2003. For my sister’s senior year spring break, my parents wanted to take a family vacation to Florida. Just to give some background, my family included my parents, me (oldest), sister (1 1/2 years younger), and two other brothers.

I was in college at the time and didn’t want to go, but my parents told me that I should invite a friend as a way of getting me to go. So I asked one of my close friends if he wanted to go. Telling him he’d just need to pay for his flight and random spending money, and my parents would cover everything else. He had nothing else going on and agreed to come with us.

My parents had reserved 2 rooms because of the size of our family anyway. So it was decided that my parents and brothers would share one and my sister, friend and I would stay in the other, with my friend and I in one bed and my sister in the other.

Once we got there, we spent most of our day at the beach or doing other touristy things. I was kinda getting the feeling that my friend and sister were into each other. Later at night, me, my friend and my sister would have time to get away from the rest of my family. After the first day, I was starting to feel like a third wheel because my sister and friend were focused more on each other.

The second night we were there, after going out, we got back to our room and got ready for bed. I fell asleep pretty quickly. Me and my friend in one bed and my sister in hers.

In the middle of the night, I woke up hearing whispers and moving around. I noticed that my friend wasn’t in our bed anymore. It was dark but I could see that my friend was in my sister’s bed. It was dark and they were under the covers, but it was very obvious they were having sex. I couldn’t see below their waist, but saw them kissing.

I didn’t know what to do. Honestly I was shocked that they would do that with me in the room but also I kinda knew they were interested in each other. I ended up just laying there pretending to be asleep. After they were done, my sister got up and went into the bathroom and my friend got back into our bed.

This happened every night for the rest of the week we were there. I never said anything to them about it. I have no idea if they kept seeing each other after the trip. If they did, they kept it a secret. The messed up thing is that they were both in relationships at the time and my friend ended up marrying his girlfriend so now every time we hang out, I have to see his, now wife, that he cheated on with my sister.