'My stepdad is marrying my sister – he watched us grow up and it makes me sick'

A woman has been left feeling sick to her stomach after her sister announced she's marrying her stepdad after an 'unexpected' romance. The 26-year-old explained how her biological father died when she was a child - and she considers her stepdad, Chris, to be her father.

However, while she has a typical father-daughter bond with Chris, her 28-year-old sister started viewing him as a potential love interest the older she got. Speaking about Chris, the woman said on Reddit: "We both really liked him, he was always kind, showering our family with gifts, etc. He basically watched us grow up.

"Now that I think about it, once my older sister, Madeline, reached her teen years, Christopher showed particular favoritism towards her, but at the time I never thought much of it. Once my sister and I were out of the house years later, I was told that my stepfather and mother were getting a divorce. I still thought of Christopher as my father, so neither Madeline nor I parted ways with him."

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Eight years after their mum divorced Chris, her sister announced she was engaged after keeping her relationship on the down low. She said: "They announced it at a barbecue I hosted at my house a week ago, the wedding will be held in a month. My mum was not there due to her nursing job.

"I was shocked, to say the least... not only because of the relative 30 year age gap, but because Christopher watched us grow up. It disgusts me just thinking about it, like, what a creep! My mum knows because I told her not even an hour after the barbecue, and believe me... she was furious with both Christopher and Madeline."

Disgusted, she and her mum have been trying to talk Madeline out of the engagement, saying it's "gross and inappropriate". However, they're struggling to get through to her. Seeking advice, she has taken to social media to ask users how they'd handle this situation.

In response, one user said: "The gifts is what gets me, while you were growing up.. I can understand getting to know your step kids. And buying them things. But showering you guys with gifts seems like a bit too far, for just trying to get on your guys' good side growing up. There’s definitely manipulation going on.

Another user added: "Ewww. My stepmum and her daughter did something similar. Her daughter married a man who had been her stepdad (not my dad)." A third user said: "Start calling him daddy every time you talk to her about him. Talk about childhood memories of daddy. How good of a daddy he was. Really lay it on thick! Make her remember when he first came around."