Tempting My Sister's Ex: A Forbidden First Time

I've always had a crush on my sister's boyfriend.It turns out, he always had a crush on me too.Once I tell him about my sister cheating on him, it allows us to admit our true feelings.Despite being in my kitchen, knowing anyone could walk in on us, we start making out.One thing leads to another, and even though neither of us has any protection, we don't care.We want to experience my first time with nothing between us.