Best Friend's Ex With Benefits

I'm in love with my best friend's ex-girlfriend.
And, now she's pregnant.

It was supposed to be a pretend relationship after their breakup.
But fake turned into real and Natalie became my obsession.
Her deep green eyes and her innocence is all I ever think about.
I'll do whatever it takes to protect her.
Especially now that she's carrying a baby.
A baby that could be mine.
Is Natalie going to tell me the truth about who the father is?