I walked in on my son having sex with my sister-in-law – we all live together and I don’t know who to tell

WITH many family members living under the same roof, there’s bound to be some drama.

However, one woman wasn’t expecting the situation she found herself in after her brother’s family moved in.

a man and a woman are kissing in a dark room
A Reddit user shared the shocking discovery she made when she came home (stock image)

In a Reddit post, the unnamed user recounted the shocking discovery she made under her own roof.

The 44-year-old mum-of-three explained that her 37-year-old brother, his wife, 34, and their two children had recently moved in with her family.

“I have big house on a farm and with everyone working from home we thought it would be a good chance to stay together as family and for my nieces to spend time on the farm,” she said.

She recalled how on the day her brother and his family moved in, her 18-year-old son joined her on a food shop.

“He went to the pharmacy to get his gym supplements and I bought the food,” she said.

“I saw condoms in my son’s plastic bag when we arrived at the house, two packs with 36 condoms each so 72 in total.”

Since her son was an adult and had a girlfriend, she didn’t think anything of it.

The Reddit user explained that “everything was fine” with every one getting along well.

“My sister-in-law and son would go on an early runs around the farm, everything seemed normal,” she said.

However, she recalled how one morning while she was working on the property, she noticed the pair didn’t “make any rounds around the farm”.

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“I asked about it and they said they decided to hit the road, I thought nothing of this,” she said.

She explained how her sister-in-law and son “seemed to have a very good bond”.

But when she returned home from a friend’s house early in the morning, she discovered just how close the pair actually were.

“It was little dark but I saw that the cabin we have in the farm was open and the light was on so I went to close the door and switch off the light,” she explained.

“As I got closer, I heard people having sex and I took a peek and it was my son and sister-in-law.”

She shared that she was too in shock to confront them in the moment.

“I still haven’t told anyone what I saw and I don’t know what to do,” she revealed.

The concerned mum shared her suspicion that the affair had been going on since her brother’s family had moved in, explaining that her son hadn’t brought his girlfriend around since then.

She added that the alleged morning runs and close relationship also made her suspect that the pair had been acting inappropriately for some time.

Reddit users shared their thoughts on the situation in the comments section.

“Tell your husband immediately. The two of you can decide how to handle the situation in general, and more specifically, how to handle this with your son,” advised one reader.

“You HAVE to tell your brother. You’re the one that saw what was happening. Do not talk to your sister-in-law, she will likely be dishonest. Let your brother decide how he wants to handle her.”

“Make sure your son is OK, imagine this story if it was a 34-year-old male and an 18-year-old female,” wrote another person.

“Could easily be predatory or grooming behaviour on her part.”

Close-up of a couple's hands intertwined on a bed.
The mum-of-three walked in on her 18-year-old son having sex with her brother’s wife (stock image)
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