Liam's little sister A Niall Horan love story

I'll kill him

Liam's P.O.V
Kayla's knee has been hurting a lot lately so we decided to take her to the doctor. When we got up and took her to the doctor Sagan decided not to come. I kissed her and then me and Kayla got into my car. We drove to the doctors and I helped her out of the car. We walked in and Kayla sat down while I did the paper work. When I finished it I handed back the paperwork. We got called back and the doctor checked her knee. It needed surgery. I told the doctor thank you and we scheduled a date for the surgery and we left. When we got home she went and found Niall and told him what the doctor said. I walked upstairs to mine and Sagan's room and threw myself in the bed.
"What's wrong?" I looked up to see Sagan walking over to sit down on the bed. When she did I put my head in her lap and look up at her.
"Kayla has to have surgery."
"Oh my god. Please don't kill Louis. I know you want to but please babe for me don't." I looked up at her pleading eyes.
"Babe you know I can't promise that. He hurt my little sister."
"I know just if you do try to kill him just punch him a few times please." I laughed.
"Ok I promise."
"Pinky promise."
"I pinky promise." And I wrapped my pinky around hers. She bent down and kissed me before moving to get up. I went with her and walked down stairs. I saw Louis and raced down the stairs and pinned him up against the wall.
"When you pushed my sister down she hit her knee. Now she has to get surgery and guess who's paying for it."
"Let me guess I am."
"Yes you are." And I punched him in the jaw. He fell and tried to hit back but I blocked and stepped back. He got up and hit me in the left part of my jaw. I fell back but swung and hit him right in the left eyebrow. He threw a punch and hit me in the lip. Someone walked over to try and stop us I didn't see who it was until I felt them hit me right in the balls and I saw them do the same to Louis. I looked up and saw Sagan.
"How about both of you idiots chill out and stop hitting each other."
"Sagan why would hit Liam there now you can't have kids." I heard Harry say.
"Harry we have one on the way I don't need another one." I laughed and stood and helped Louis up. She looks at us and shook her head. She grabbed our hands and pulled us into the bathroom she cleaned Louis up first then she let him walk out but she kissed him on the cheek first. She looked at me and just shook her head.
"What?"
"Your an idiot."
"I'm your idiot."
"Yes you are." She fixed me up and kissed my cheek. She kiss my lip where it was spilt and looked at me.
"All better?"
"All better." I helped her get off the counter and I kissed her forehead and walked out. She followed and hit my butt and walked away like nothing happened. I saw Niall and Kayla talking and Niall had her legs in his lap. He was talking to her about her knee. She looked scared. But she trusted him and I know that. But i know she doesn't want to go threw the surgery. I looked at Niall and smiled. He had her heart no doubt about that. She loved him. But could she ever forgive Louis was the big question.