My Mother-in-Law Slept with My Husband

I went with my mother-in-law to pick up our daughter from school. The teacher mistook my mother-in-law for my daughter's mother.

Even more shocking, my daughter actually called her Mom of her own accord.

I stared at the scene before me in disbelief. My daughter really did look a lot like my mother-in-law, especially around the eyes.

But wasn't she born from my womb?