He Cheated on Me With My Younger Sister. So I Let Him Fall in Love With My Biggest Secret.

My husband thought he was having a secret affair with the perfect woman. What he didn't know was that the woman he was secretly meeting had been keeping a secret of her own.

The first time I caught my husband lying, he was standing in our bedroom wearing nothing but a towel.

His phone was ringing.

A message appeared on the screen.

"Last night was unforgettable. When can I see you again?"

The sender's name was Emily.

My younger sister.

I read the message twice.

Then I looked at Daniel.

"Who's Emily?"

He froze.

For a few seconds, neither of us spoke.

Then he smiled nervously.

"Just a client."

I nodded.

"Interesting. Your clients seem very affectionate."

He grabbed his phone.

"You're making a big deal out of nothing."

I smiled.

But inside, something had broken.