My Mate Is My Sister's Boyfriend

*Completed*

(Previously known as 'Troublesome')

"Mine!" I hear a husky voice coming from behind, making shivers run down my spine. I knew exactly who it was.

"No!" I let out a whisper. "You can't be my mate," I say in shock.

No. I can't do this. A hand grabbed my waist and turned me around, making me slam onto his hard chest. I felt it. The sparks, the shivers. The feeling that I would never feel with someone else. I try pushing him away but he wouldn't budge.

"Y-you are my sister's boyfriend!" I breathing heavily.

"And I have a boyfriend," I say in horror. This made him growl angrily.

"You are mine! No one else's but mine." He growls loudly.

"I will kill whoever touches a single hair on your body. You are my mate, not Owen's. If he even touches you, I will kill him without a second thought, Beta or not. Besides you're going to be his Luna. He has to respect that. " He tightens his arms around my waist, making me gasp.

... ... ...

Ariella and Kiara are sisters. They are not twins but they do everything together and they would die for each other. The two sisters had to run away from a rogue attack. They have kept low until they joined a pack. The Dark Moon pack. One of the strongest pack in the UK.

What happens when Ariella is mated to Nathaniel, Alpha of The Dark Moon Pack? The very same Alpha who is also her sister's boyfriend. What if Kiara's mate is Owen, Ariella's boyfriend?

Will their sister bond break? Or will they sacrifice?

Read to find out...

... ... ...