‘My mom thought she'd get a grandkid out of it’: Pregnant stepsister comes back and steamrolls a 16-year-old girl's life, the teenager refuses to live with an evil tyrant and moves back in with Dad

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Jesse Kessenheimer • Writer and Editor
Apr 18, 2025 5:00 PM EDT

I hate picking sides in a family argument. Regardless of who comes out on top, you're left a traitor to the other side, knowing that this alliance will come back to haunt you. But this mom in our next story picked the wrong side to align with, choosing her stepdaughter and her new husband over her biodaughter. 

Although she didn't realize it, this mom's choice to take care of her 19-year-old pregnant stepdaughter effectively drove away her 16-year-old daughter. However, the mom knew that the stepdaughter had tormented her kid for years, but thought that the bad mojo was behind them. Well, it certainly wasn't—and when the stepdaughter, pregnant and bursting with new hormonal hatred for her stepsibling, chaos broke loose in the house. 

Lucky for the teen, she could take refuge at Dad's house, fleeing from her old life to protect herself from her mortal enemy: Her stepsister. Sorry, Mom, but you made your camp on the wrong side in the hopes of getting a grandchild out of it, but you lost a biodaughter in the process. 

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  • "AITA for moving into my dad's full time after my mom's pregnant stepdaughter moved back in with her and my stepdad?"

    I (16f) have broken up parents and my mom married someone else when I was 8. My stepdad has a daughter Hannah (19) and she was a bu y the whole time we lived together. She didn't like me
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  • or my mom and made that clear every single day. My mom would step in and tell Hannah to stop. My stepdad would say something but normally not too forcefully and I never felt like he cared all that much about her treating me that way.
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  • Hannah moved out last year and my mom promised she would never be welcome to live there again and she swore my stepdad had agreed to meet with Hannah outside the house so she wasn't given the chance to buy me again.
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  • The bu ying stuff was harmless at first but got worse. She'd make fun of my hair a lot when it first started and she'd laugh at me in a mean way if I fell or something went wrong. But then she started
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  • swearing at me, calling me things like a b and a and she'd say I stank and would spread rumors among her friends that I didn't shower, or that I sh myself all the time. She used to tell me I
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  • couldn't sit in the same room as her and I wasn't allowed to sit next to her at lunch or dinner at mom's house. The worst it ever was happened when I was about 11
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  • and my stepdad had taken me along for a day out with his daughter and her friends and she and her friends crowded around me at the arcade and she shoved me against the wall and even tried
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  • to spit on me. I hid in the bathrooms until my stepdad was ready for us all to leave. I told my mom, she went nuts on my stepdad and his daughter but nothing really happened.
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  • Even though mom never left to protect me I always wanted to believe she was serious that once Hannah was over 18 she wouldn't be allowed back unless she treated me better. Then I found
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  • out mom lied. Hannah's pregnant so she and my stepdad are letting Hannah move back in. When I found out about that I told mom I was moving in with dad full time and I wasn't going to her house
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    The image does not depict the actual subjects of the story. Subjects are models.
     

  • anymore. She told me I couldn't let Hannah chase me away from my home and I said it isn't home when Hannah's there. When I went to grab my stuff from
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  • mom's, Hannah had already taken over my room with extra stuff and she left them in a puddle. Apparently she has a dog so maybe it was dog pee but yeah...
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  • there were some other things of mine in that puddle too. And Hannah knew about it because she smirked the second she saw me. My mom told me she doesn't want
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  • to lose me and that I need to take action that's less drastic and I asked mom how she expected me to visit her knowing she's staying and helping Hannah after all Hannah did to me. Then I told her
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  • she was pathetic if she thought she'd get a grandkid out of it because Hannah will never let her kid call mom that. Mom told me that was none of my business and she'll make sure she protects me.
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  • I asked her if she'd protect me like she protected my stuff. I said I only assumed it was the dog too. That Hannah hates me enough to pee on my stuff herself. Mom said that was disgusting and I told her I
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  • hoped someone had cleaned up my old room because I touched nothing that was covered in pee. My mom told dad he needs to send me to her house every other week like the court order says.
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  • Dad told her the court order covered this because I'm older than 15 and he read the section that said I could stop going to one house or the other once I'm 15 and make the choice myself. My mom said this is me going too far and it needs to stop. AITA?
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  • Maxitoz. NTA. You're protecting yourself after years of bu ying, and your mom broke her promise. Moving out was a fair choice.
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  • Chaoticgood790 Your mom is a liar and I would never trust anything she says. Stay with your dad and let your mom be miserable with her evil stepdaughter that she's trying to beg for approval from.
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  • And when you're older and have kids and won't let her be a grandparent you can tell her why. Then she will lose twice
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  • JannaNYCeast ⚫ NTA. Your mom hasn't protected you thus far, no reason to believe she'll start now. She's chosen her marriage over her child and that sks.
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  • Try to always remember that this has nothing to do with you and everything to do with her. This is her failing, her shortcoming, her defect. I'm sorry, sometimes we don't get the parents we deserve.
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  • evilslothofdoom NTA you're not "taking this too far." You're doing the exact thing you need to do to protect yourself. Your mum knows how she is and the lack of parenting her husband has done.
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  • Now you're not her meat shield against the pregnant monster she will have to put up with the full force of her hatred. Any day now she's going to find a pile of her stuff covered in urine. She's
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  • going to be belittled by her stepdaughter and her friends. She's probably going to be expected to raise the baby so stepdaughter can go out with friends. This is HER choice. She
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  • knew where you stood and broke a promise. She's losing her own kid because of that man and his daughter. I hope your dad's a good guy because you deserve to have at least one reasonable parent.
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family drama step sister dads famiies drama step siblings kids brother siblings moms parenting dad story family sibling sister stepsister stories parent mom cousins parents
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