Step Brother- A Cameron Dallas fanfic

My name is Savannah Riker Dallas. No, my middle name is not Riker. That was my last name before my dad got married, to Gina Dallas. I'm 19 and I'm the step sister of Cameron Dallas, who's 21, and Sierra Dallas, who's 26. I honestly love my new family, but sometimes Cameron gets all sexual around me. Here's the story proving it.

I wake up one morning, rubbing my eyes. I get out of bed going to shower.
As soon as I got in the shower, I completely spaced everything out. The door opened and I didn't even notice. All of the sudden, I feel someone's arms around my waist. I turn around to see Cameron standing there.
"What are you doing in here?!" I yell. Nobody was home. Just me and him.
"I want you" he says looking at me.
"I'm your step sister, that's just wrong" I reply.
I can tell he really means it, and when I'm not looking, he kisses me, grabbing my waist.
I kiss back, feeling guilty. This is not right, but why am I letting him?
I push him off. Turning away

I'm making part 2.