Girlfriend On Cruise.

My girlfriend and I went on a cruise with her family last month. We are 21 and 22 and stayed in a room with her brother and his friend he brought along.

I wish I could say the cruise was uneventful but it wasn’t because apparently my girlfriend and her brothers friend named mark have a secret fuck buddy relationship I wasn’t aware of. Her and I would sneak quickies in the room during the day.

Our first night mark came in super drunk. My girlfriend was staying on the bottom bunk the opposite side of me and I was on the top bunk so I had a good view of her from below. Her brother was out and pretty much didn’t sleep in our room. He hooked up with some girl he went to high school with and stayed in her room each night. So anyway mark comes in and sees my girlfriend sleeping and basically likes falls on top of her and starts to kiss her. She seems highly irritated and looks up at me but I pretend to be asleep. I kinda had suspicions about them and wanted to see what she would do. So I guess she was satisfied I was out but told him to be quiet or she would kill him. He removed his shorts and underwear and she took off her panties. He quickly penetrated her raw and thrusted for about 2-3 mins before he came inside of her. As I said he was drunk and she seemed more irritated than anything else but it confirmed my suspicions just how easy she let him fuck her.

We had 4 more nights of the cruise and each day we would have sex. The following night Kevin was sober and when they were both satisfied I was asleep he went over to her bed again and they started making out. She kept looking up nervously to me but once he got her panties off and started to eat her out she more or less forgot and just enjoyed the pleasure from mark. He made her cum which she did quietly as she could and then he penetrated her again. This time since he was sober she seemed to enjoy it way more and I basically watched his naked ass clapping as he fucked my girlfriend pretty good. She had her legs spread wide and just let him pound her until he came inside her again.

He fucked her the subsequent 3 nights as well. They usually did oral first. Mostly him eating her pussy but she did suck him the last night and then they would fuck. It was missionary each time until the last night. I heard her whisper that he deserved a break from doing all the work so she rode his dick until he came.

So basically my girlfriend was taking my dick each day and his each night. We have a ton of sex but now I know she is a cheater so I guess at some point I’ll have to break up with her but I am kinda addicted to fucking her for the time being.