Betrayed! Sister Sleeps with Best Friend, Drama Ensues

Picture this: you lose your parents in a tragic accident, and your little sister moves in with you. You’re doing your best to help her adjust to her new life, and everything seems to be going smoothly. You even introduce her to your best friend, Cole, and they get along great. But then, your sister confesses that she and Cole slept together on the night of her 18th birthday, and he asked her to keep it a secret. How would you react? Well, one woman found herself in this exact situation, and she’s wondering if she’s in the wrong for calling Cole creepy. Let’s dive into her story…

A Tragic Beginning

Sisterly Love ❤️

Smooth Transition

Birthday Shenanigans

Stressful Times

The Big Confession

Seeking the Truth ️‍♀️

Secrets and Stress

Confronting Cole

Back and Forth

Texts and Accusations

Protecting Lily’s Feelings

A Clarification

More Harassment

Repost and Revelations

Creepy Cole’s Secret Affair

After her parents’ tragic death, our protagonist takes her 18-year-old sister, Lily, under her wing. All seems well until Lily confesses that she slept with the protagonist’s best friend, Cole, on the night of her 18th birthday. Cole asked Lily to keep their encounter a secret, but she couldn’t hold it in any longer. Our protagonist confronts Cole, calling him creepy for sleeping with her little sister. But now, she’s being bombarded with texts from Cole’s family and friends, calling her the a**hole for her reaction. With everyone taking Cole’s side, she’s left questioning if she’s really in the wrong. Let’s see what the internet thinks of this situation…

Manipulative friend, traumatic event, NTA.

NTA defends younger sister against predatory family friend

Creepy comment about sister’s age and sex crime implications

Doubting the validity of the story

Protective sibling slams creepy friend, supports sister.

Cutting out toxic friends is always the right move

Respect your friend’s comfort, don’t be a predatory groomer

Predatory behavior towards a grieving and vulnerable barely-adult. NTA!

Cole is a predator. OP, watch out for your sister.

NTA. Lily’s vulnerability and dirty secret exploited by manipulative ‘friend’

Cole is called out for his disgusting behavior. NTA.

Accusations of premeditated betrayal and a clear verdict of NTA.

NTA defends sister against friend who took advantage of her

NTA defends sister, calls out manipulative friend’s age difference

Red flag alert! Best friend groomed little sister

Protective sibling rightfully calls out predatory behavior

Standing up for what’s right in the face of predatory behavior

Power dynamic, legality, and morality of Cole’s actions discussed

Predatory behavior and manipulation. NTA, ditch the creep and friends

NTA. Confronts sister about creepy situation with best friend Cole

Standing up against a predatory creep. NTA for sure!

Defending OP against accusations of being TA with clear reasoning

28-year-old finds sister’s relationship with best friend creepy ‍♀️

NTA stands with traumatized sister against predatory ‘friend’.

Beware of the predator disguised as a friend

Age is just a number, said no one ever. ‍♂️

Don’t shame Lily for being an adult. Get over jealousy.

NTA calls out creepy behavior, no replies

A comment on the ethics of sleeping with a childhood friend

Friend’s sister off-limits, especially if known since underage. Creepy!

NTA defends sister and calls out friend’s creepy behavior.

Creepy ‘friend’ sleeps with grieving barely 18-year-old sister. NTA.

Accusation of ulterior motives in sister betrayal situation

Age rule broken, friend is scum for sleeping with sister

Age gap relationship defended, but timing could have been better

Age gap aside, friend took advantage of vulnerable sister

User questions validity of story, demands more details.

Brother’s NTA for not wanting friend to sleep with sister

Ditch the creep and ignore the messages.

A 27-year-old sleeping with an 18-year-old grieving sister is creepy

Cutting off a creep – why the friend was in the wrong

Creepy Cole gets called out for waiting to sleep with sister

Creepy age gap and betrayal in long-time friendship

Clarification needed on the nature of their relationship

Protective NTA calls out ‘disgusting’ friend for creepy behavior

18th birthday hookup? Groomer AND creep. NTA, not friend

Cole is a predatory creep, NTA for calling him out

Creepy best friend sleeps with grieving 18-year-old sister. NTA.

Friendship boundaries crossed at under 21 club

Friend hooks up with sister, lies to hide it. NTA.

Consenting adults, no one at fault. Age gap not uncommon

Age difference raises concern, commenter calls out ‘pedo shit’

Parents getting involved? Creepy and whiny behavior

Sibling’s friend preys on grieving teen, NTA calls him out

Sibling betrayal is tough, but playing parent is tougher. NTA

Brother wins *BEST* Big Brother award for calling out creepiness

Friend encourages sister to lie, harasses OP. Massive creep

Age of consent questioned in NTA comment

Friendship rule broken: Don’t bang your friend’s sister

Family texting is harassment, creepy momma’s boy alert

Best friend’s creepy secret exposed, NTA for blocking him

Age difference creates power imbalance, blame on creepy friend Cole

Disturbing situation. Consent, age gap, and grieving all concerning.

Disgust towards friend’s creepy behavior and betrayal.

Legal but creepy actions discussed in NTA comment.

Questioning society’s morality in age of consent discussion

Protect your sister, cut ties with the predator.

Is this really a thing?

Age gap and secrecy in relationships – a gross situation

Brotherly love prevails as guy’s creepiness exposed ❤️

OP’s sister is about to learn a harsh lesson. NTA.

Sexual encounter between sister and friend: commenter defends sister’s agency.