AITA for telling my stepdad he shouldn’t want me to lie to my stepsister?

A 16-year-old guy found himself in the middle of his parents’ crumbling marriage when his stepdad pulled him aside for a heavy talk, pressuring him to make false promises to his 9-year-old stepsister about their relationship surviving a divorce. The teen, who’s never bonded with her or seen her as a sibling, pushed back hard – and now wonders if he was wrong for refusing to play along.

With counseling underway and divorce vibes thick in the air, the stepdad’s request felt like a desperate bid to shield his daughter at the teen’s expense. Honesty clashed with protection, sparking a yelling match that left raw feelings exposed.

‘AITA for telling my stepdad he shouldn’t want me to lie to my stepsister?’

The household has been tense for a while, with the mom and stepdad’s five-year marriage on shaky ground, though they shield the younger stepsister more than the teen:

My mom and stepdad have been married for 5 years and their marriage is pretty bad right now. They're in marriage counseling but I think they're going to divorce.

They don't talk about it but I (16m) hear stuff and see stuff. It doesn't help that they're not as careful around me as they are around my stepsister (9).

In a private sit-down – the first time divorce was openly mentioned to him – the stepdad urged the teen to reassure his daughter with specific scripted promises:

The marriage maybe ending has made my stepdad try to pressure me to spend more time with my stepsister and the other day when we were alone he sat me...

and I'll always be there for her. He told me I need to reassure her and promise her that I'm her brother regardless of whether he and my mom are...

But he was really really feeding me the stuff to say. And the thing is I don't see her as a sister now. I don't really spend time with my...

He said it's important to do this. That it's very important that she doesn't get hurt if anything goes down.

The teen stood firm, explaining why he couldn’t commit to empty words, leading to escalation:

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I told him I can't say those things to her because I wouldn't mean them. He told me I have to say them regardless. That she deserves to be supported...

That if he and my mom get divorced I won't see her again. I told him I won't want to see her again. He repeated again that I should still...

that it'll be worse if he makes me lie and then she's hurt if/when he and mom get divorced.. He started yelling that he doesn't want me to lie but...

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This situation exposes the tough realities of blended families under strain, where adults sometimes shift emotional labor onto kids. The stepdad’s plea stems from fear of hurting his young daughter, but asking a teen to fabricate a lifelong sibling bond – especially one that never existed – is unfair and manipulative.

The teen has been honest about his lack of attachment, formed over years with a big age gap (he was 11 when they married, she was 4). Forcing promises risks bigger heartbreak later if they’re broken, eroding trust all around.

Family dynamics expert Dr. Joshua Coleman notes that in divorces involving stepfamilies, parents often overestimate kids’ bonds and underestimate resentment from forced blending (source: his work on parental estrangement). Kids aren’t obligated to maintain ties post-separation.

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The stepdad should focus on his own reassurance role as parent, perhaps with therapist guidance. The teen’s mom needs to know about this pressure. Long-term, honesty now prevents deeper pain – the boy handled a mature stance in an immature adult setup.

Here’s the feedback from the Reddit community:

The community overwhelmingly backed the teen, calling out the stepdad for dodging his own responsibilities and trying to offload emotional fallout. Most highlighted how he’s shirking fatherly duties while burdening a non-biological teen.

Ok_Conversation9750 - "He said it's important to do this. That it's very important that she doesn't get hurt if anything goes down. I told him I can't say those things...

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That she deserves to be supported and I should be there for her. " So he feels she deserves to be supported, just not by HER FATHER! Holy s__t -...

as well as pass the future hurt and disappointment she will feel onto you to make you the bad guy instead of himself. You're NTA - you dad needs to...

KekzEdition - NTA bs he wants you to do better. He just wants you to lie. He also wants to not be truthful to his daughter, which is even worse....

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ifannawuck - Definitely NTA It's commendable that you're being honest about your feelings and the situation, even if it's difficult for your stepdad to hear.

Your stepdad's pressuring you to make promises you don't feel comfortable making is not fair, and it's important that he respects your feelings and understands that you can't be forced...

Additionally, by being honest about the potential changes, you're protecting your stepsister from greater disappointment in the future. It's clear that you're navigating a complex situation in a mature way,...

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Babbott50-410 - Tell him it is important that HE be there for his daughter and not some 16 year old teenager. He made her, he is suppose to love her...

Spiritual-Vanilla-39 - NTA. He's right that she should be supported and, as her father, that's his responsibility.

SafeWord9999 - Wants to support his own kid but doesn’t give a damn about you. Nice

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ComprehensivePut5569 - NTA - He’s the parent. It’s his job to reassure HIS daughter not you. Does your mom know he is pressuring you to lie to his daughter? If...

sleddingdeer - NTA He wants you to do the emotional work he is unable to do. Blended families don’t always work and it’s really disgusting the way parents try to...

learhpa - the other day when we were alone he sat me down and told me to promise my stepsister that even if "our parents" get divorced that we'll still...

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The first time you heard mention of the possibility of divorce was when your stepdad was asking you to help him mitigate the emotional impact on your stepsister? Dude, you...

Your stepdad (or, better, your mom), should be talking to you about how you are impacted by the trouble in their marriage and the risk of divorce, not leaning on...

Dominique-Gleeful - Nta lying is bad. As you said when they split you're not going to care or think about her so why pretend

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SpicyPorkWontonnnn - NTA Your step dad is handling the potential breakup badly and is trying to influence you one way or another. He needs to get a grip, you need...

And as I'm typing this out, yeah I'm coming more around to you needing to tell your mom that he's overstepping this boundary and trying to tie you up with...

HorseygirlWH - There's no way you should lie to your stepsister. You were already 11 when your mom married your stepdad and she was 4; most 11 year-olds aren't chummy...

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The difference in your ages is rather large for you to have suddenly started feeling like she was your sister. You're NTA for not wanting to lie to her if...

forgeris - NTA, don't play stupid games...

Disastrous-Level-420 - NTA. He wants you to lie so he’s not the one that looks bad. She can then be mad at you for abandoning her. When in fact it’s...

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That’s pretty shady of him to do to you. I would not say or promise anything you don’t mean or have no intention of doing. Your own personal integrity is...

Mysterious-Bag-5283 - NTA she will be more hurt if you don't keep promise (I understand you not the one who tries to lie to her)

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Hands down, the consensus lands solidly with the teen refusing to fake a bond protects everyone from worse pain down the line, and it’s the adults’ job to handle their mess.

Blended family breakdowns like this lay bare how kids often bear the brunt of parental wishes. Truth might sting now, but lies unravel harder. What’s your take – should teens ever be roped into these emotional scripts, or is raw honesty the kinder route long-term?

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