'Husband slept with my sister and got her pregnant – he doesn't think it's cheating'

There's no bigger betrayal than being cheated on, and one woman was left mortified when she found out her husband slept with her twin sister.

Submitting a fan story to Belle Blake on TikTok, the anonymous woman said she didn't "know how to feel" when she found out, because she has "fertility problems" but her sister does not.

She explained she and her husband have been "struggling to have a baby for the last six and a half years", which has been an emotional time for the couple. Then her husband did something horrendous to try and solve their struggles.

"Without telling me, my husband and my sister decided to sleep together to get pregnant, and surprise me," the woman claimed. "My sister wants me to have this baby, embrace this baby, after she's slept with my husband. He says that it's fine because it's like a surrogacy, and genetically it's my baby, and my sister says it's no big deal."

The woman pointed out "this is not the same as surrogacy" as it wasn't her egg - and her sister had just slept with her husband. "My husband said it's not cheating because it's basically the same lady parts because we're genetically the same," she fumed.

In the comments section of the TikTok, people encouraged the woman to "divorce and go no contact with both of them". One said: "Huge red flags. Now that they crossed that line they will continue to cross it." Another echoing that sentiment, sharing: "I'm sorry. I can't imagine your feelings of betrayal."

Someone wrote: "As a twin myself, I would be OK with this if I couldn't have children if it was discussed by all parties first! I'm so sorry girl!"

"You have to run away from this situation! They have created a horrible mess," a fourth said. And a fifth wrote: "They are playing you. Get out now! So sorry you have to deal with this."