My Sister's Boyfriend BXBXB Omegaverse

"Sam, this is my Boyfriend, Alpha Julian, treat him well."

I was dumb, an alpha in my house? What am I going to do? My heat is around the corner. Damn!

"Hi!" he greeted and I jumped, I wasn't expecting him to talk "I hope we can get along Sam!"

Right after he said that my heart started to beat really fast. He is my fated mate? And is my sister's boyfriend.

"I don't care!" I shouted, embarrassed and angry while running to my bedroom "Just be quiet at least."

"He is an alpha, respect!" I heard my sister saying downstairs. "Come right here."

I returned to the entrance hall and looked into my sister's eyes while I was talking.

"I. Hate. Alphas!" I said and my heart stopped for a second, making me cry and run to the bedroom again.

I know I shouldn't have said that, but I want to hurt my sister neither date an alpha, even less my bully.

"Come back here. Omega!" he demanded and my knees failed in front of my bedroom door, but I recovered quickly and got in my bedroom.

"I'm not an omega, you idiot!" I shouted from the door before closing it.

It must be because of my heat and that we are fated mates that he found out what I was, but I'm not going to obey him because of that. My heat is almost here and my sister knew it, why did she bring him here? I don't get it.

I started to watch a movie on my bed on Netflix when someone knocked on my door.

"What was that?" my sister asked on the other side "Did you have to speak like that?"

"I don't know!" I lied "You know that I don't like alphas and that my heat is near..."

"I'm so sorry Sam, I completely forgot about that."

I smiled, my sister was always like that, even if it was important she forgets completely.

"I forgive you!" I said, "I will try to be nice... to him!"

"You are the best brother!" she said and I could hear her jumping in happiness in the hallway "Thanks, Sam."

"Yeah! Yeah! Now go away."

My sister sighed and I got up to open the door. When I looked behind her I saw Julian laying on the wall looking at me. He had a huge smile on his face that made me fixed on it. After a while, he laughed and I looked to my sister, who was confused.

"What do you need more sister?" I asked, bored "I know that you have more to say, spill it!"

She looked behind and then back to me before walking beside me.

"Thanks, sweet!" he said before kissing her forehead, that made my heart hurt but I ignored it. "I will repay you later."

"Ew! Get a room!" I said, disgusted and they just laugh.

"I need to talk to you!" Julian said and I got back in the bedroom "You're sister agreed with me that..."

I slammed the door on his face, I didn't want to hear anything else from that mouth, not after he had done to me at school. Right after my door is forcibly open and an angry alpha appeared inside my bedroom, I was terrified.

"What the..." I screamed before a wave of heat hit me "Oh, no!"

I rushed to the bedside table and took out my bottle of suppressants but he stoled it from my trembling hands.

"I knew it!" he said after reading the bottle label "You are my omega!"

"No! You are wrong, give me that!" I said, crying "Please!"

He laughed and jumped in the bed and I blacked out without remembering anything after that. In the morning I tried to get up but my waist was hurting me and I realized what happened.

"I can't believe that I had my first time with an alpha. I was not ready for this, I am 17."

I calmed down, maybe it wasn't that bad and I am overreacting, he didn't force me.

I walked slowly to the bathroom and I took a deep breath before looking to the mirror. My eyes watered after I saw a clear mark of his teeth on the side of my neck.

"Where is Julian?" I asked, angry.

"Are you ok? Why are you looking for him?"

I didn't answer and I went to take a bath before going to bed again.

"Are you sure you are ok?" she asked, worried "He said that you both were watching a horror movie and you got really scared."

I sighed, it was hard to lie to my sister but how was I suppose to tell her the truth about last night?

"Yeah! He wasn't scared at all!"

"He is an alpha after all!" she said before laughing and I laugh too.

I got out of the bed and made sure to hide the mark with makeup, which was hard because it was quite deep.

After some weeks I started to throw up and only at that moment it came to my mind that I wasn't on heat anymore after that night and that only means one thing.

"Oh!" Julian said behind me "You just found out?"

"What do you mean?" I asked, scared. I was hoping that it was a lie and I was only sick.

"That you are pregnant!" he said and I threw up again.

He started to rub my back but I slapped his hand and he walked away.

"You are lying!" I said before getting back to what was doing.

When I calmed down I thought of what I could do, I couldn't kill my own child, even if he or she was his.

"If you don't treat me well I will tell her!"

"Do you know what it is going to..."

Before I could finish, I heard my sister running and became worried when she saw me on the ground.

"Are you ok, Sam?"

"It is only a belly ache." Julian answered her, smiling "Right, Sam?"

I clicked my tongue before agreed to him.

"Oh! By the way. When will you move out?"

"Move out?" I asked confused and looked at Julian, I was sure that it was his fault.

"Didn't he told you?" she asked confused "We are getting married next week!"

"I didn't know anything!" I informed her while I was getting up. "Congrats, sis!"

He looked right into my eyes, smiling and I hurried to get out of the bathroom.

"Do you need help to pack?" she asked and I said no with my head. "Can you get out of here, please?"

"Yeah, sure!" she said, smiling. Then she pulled Julian by his arm when she was getting out "Start now so that you can go quicker. You wanted a place of your own, right?"

"Yeah!" I answered.

"Are you ok with the marriage?" he asked after my sister closed the door "If you're not..."

"Yeah. Is fine. " I said with pain in my heart, it was more painful than the others.

"Why?" he asked and I got furious.

"Get out before I hit you!" I screamed and threw a pillow to him, that he caught without effort.

He started to laugh so, I got up and tried to punch him but he dodged and I fell on the floor.

"Look out! The baby can get hurt!"

He is an idiot, but somehow I love him a lot. I couldn't say that I hated him because I was sure that my heart isn't that strong, only the thought already makes my heart slow down.

I don't know if it is because we are fated but I started to boil feelings for him and I'm scared.

"You know that I can hear you0re thoughts, right?"

"I forgot!" I answered, embarrassed. "The damn bond!"

How could I forget about that? It was something common to the werewolves.

"So... You love me too?"

"Too?" I asked, confused and then I slapped my face "No, bad Sam... He is an alpha, you can't... fall in love with him."