An Oklahoma woman's Facebook post went viral this week after she offered to be a "stand-in Mom" for anybody who had a mother that would not attend their same-sex wedding.

"PSA. If you need a mom to attend your same sex wedding because your biological mom won't. Call me. I'm there. I'll be your biggest fan. I'll even bring the bubbles," Sara Cunningham wrote in a Facebook post last Friday.

The post had more than 8,000 reactions and about 8,000 shares as of Wednesday morning.

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Cunningham told CBS News that she has been active in the LGBT community for years and that one of her sons, Parker, is gay. Cunningham admitted to the news outlet that it was initially hard for to be "OK" with her son coming out.

"I'm a woman of faith ... We live in a conservative town," Cunningham told CBS. "I felt like I had to chose between my child and faith. I was under this impression it was the ultimate offense."

But Cunningham said a private Facebook group for moms changed her perception, and she eventually wrote a book, "How We Sleep at Night: A Mother's Memoir," to help other moms dealing with the issue.

Among other things she's done since to support the LGBT community, Cunningham has became ordained so she can officiate LGBTQ weddings.

She's officiated 12 same-sex weddings, and told CBS News that her inbox has been flooded since posting about being a "stand-in Mom" on Facebook last week.