I am not The OOP, OOP is u/Jwu28jsl

Boyfriend [25M] and his sister-in-law [28F?] sneaked out to the beach at 3am.

TRIGGER WARNING: infidelity, manipulation

Original Post June 5, 2016

OK so last night that happened. We've been together for a year.

We were visiting his parent's house (who live by the beach) and his brother was also there with his wife. We stayed there last night and at around 3am I was half sleep and noticed that he's leaving the room. I thought he's probably going to the bathroom or something. I heard some noises from downstairs and I wasn't paying attention until I saw from the window that he's going out to the beach with his brother's wife!

They came back about an hour later.

I still haven't confronted him and was wondering what this could mean. What was it that they needed to do? I don't know what to think. Is it something that I can be upset about? Sneaking around at night isn't cool in my opinion.    tl;dr: Boyfriend sneaked around at 3am with his sister in law to go to the beach and came an hour later while he thought I was sleeping.

RELEVANT COMMENTS

[deleted]

I'm very surprised you didn't follow them. It could have a range of interpretations from a crazy idea to wanting to fuck on the beach

OOP

I wanted to but they had locked the front door behind them, and I didn't have the key.

AngelicPrincess

This is a new one to me. Do tell, how do you get locked IN a house?

OOP

The lock has keyholes in both sides. I imagine my in laws lock the doors at night and keep the key somewhere inside and my boyfriend had a spare key so he opened it, got out and locked it back

panic_bread

What if there's a fire?

&

I once went on a couple of dates with a guy. On our second date, he invited me over to his house to watch a movie. When it was time to leave, it turned out that the door was locked from the inside and it took him about 10 minutes to track down the key. I never went on another date with that guy again.

Update  June 9. 2016

Hey again.

As much as I wanted to tell you all that it was over nothing, that they just wanted to get some air or smoke some weed or something, not the case. They were indeed fucking.

I asked my boyfriend about it. Didn't mention that I saw him go out with her, just that I saw him leave the bed and come back later. He told me that he just went to pee and then saw his dad in the kitchen who couldn't sleep and they had a chat for a while. Liar.

I asked his sister in law immediately after that, said that I saw her from the window for a second. Was I just imagining it since I was half sleep or did she go out "alone" that time of night? She said that she enjoys midnight breaths and alone walks on the beach. Liar again.

I told his brother that I saw them leave. He told me that they enjoy long walks on the beach. He couldn't be bothered to go with them. I thought liar.

So apparently they gave each other the heads up since my boyfriend came to me and told me everything an hour later. Him and his brother like sharing their girlfriends and SOs. He's been fucking his sister in law for years now. That night was just another moment. He told me that he wanted to tell me when the time is right or when he thought I'm prepared so that I can join in and sleep with his brother so they don't even need to sneak around.

He wasn't even admitting that it was cheating, saying that it doesn't count since it's his sister in law not some random girl. I don't even know what to say to that. He called me traditional for thinking it was cheating. Yeah. I consider having sex with anyone else cheating, call me traditional.

So I broke up with him and left him to deal with his weird shit with his brother and I'm actually happier now. The thought of what he was up to all those times grosses me out completely. He can fuck himself. We wanted to go on a holiday together, now I'm gonna go have fun with my cousins instead.

RELEVANT COMMENTS

prettyandsmart

I love that he said it's not cheating because it's his SIL. WTF??? That is literally the craziest statement I have ever seen.

Not to mention it's pretty fucked up to have this arrangement, get a girlfriend, and keep it secret until you think she's "ready" to exchange SO's and have sex with the brother. How the hell are you going to assume that your girlfriend is going to be down with doing it when you finally explain the arrangement?? OP you dodged a freight train.

OOP

He thought he was preparing me for it slowly.

~

are-you-sitting-down

Do take the time to go get checked out for STDs.

OOP

I have an appointment for tomorrow actually. I'm gonna make sure everyone knows their shit if he's given me something. Their parents don't know. They will if I have an STD.

Commenter

Don't let anger and revenge control your actions. Also remember that the girl has done you no harm so disclosing her secret might not be fair to her.

OOP

She's done me no harm? She had sex with my boyfriend God knows how many times behind my back while knowing I wouldn't be OK with it and she lied to me about it face to face. Fuck her.    tl;dr: They were fucking. His brother knew. It was their thing. They wanted me involved too. No way. We broke up. Fuck them all.

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