Tris pov
The days pass like a rushing river, reckless and violent. By the end of the week, my side is covered in bruises and I have a cut running from my eyebrow to my cheek.
The day goes as expected. I get up, make Eric breakfast, take a few hits and return to my room.
Usually, Eric calls me at noon to finish chore and make lunch, but today, he comes before noon.
"How are you, princess?" He asks.
I stand my ground. Glaring at him.
Eric begins to casually walk towards me. "You know, we are supposed to be a couple, Tris. But you've been here for a week, and seemed, well, icy."
I look down at Eric's feet. What a fool.
"It's Sunday Tris. Loosen up."
Suddenly, Eric grabs my shoulders, slamming me against the wall. I twist my head up just as Eric slams his lips to mine.
My knee comes up, hitting him in the stomach. He pulls away, a satisfied grin on his face.
"Just to let you know, my friends are coming over and we're having a party. Be dressed by six thirty. It time for some fun." Eric grins and leaves.
My chest rises in panicked breaths and I wipe my hand over my hand repetitively. What does he mean by 'it's time for some fun'? Even if I have no idea what Eric's going to do, I know it will not be fun for me.

Eric pov
After I walk out of Tris's room, I smile. Tris isn't a pretty freak, but she certainly does turn me on. I love Sundays. And soon, I'll make Tris like them too.
I love the power I have over the girl. I can't wait to watch her squirm again. I can't wait.

give me ideas for what Eric should do to tris.