The Billionaire's Attraction

Damn, Kairus Dennis Brovarian. This man is the brother of my brother's wife, and my brother just got married a week ago. He was asked to look after me by my brother, which shouldn't be necessary.
After my brother got married, I thought I could enjoy life on my own. I had assumed that I could now live without being in his close, overpowering sight, but I was wrong. He even recruited Kelsey's brother to keep an eye on me when they were abroad on their honeymoon.
Hello? Just a month away and I'm already eighteen!
This is why I wanted fire. I don't want someone to approach me, touch me, or even try to take control of my life. I desire to ignite my own fire. I prefer to make all decisions alone, not in conjunction with anyone else.
I can't drink, party, or can't even invite my bestfriend to see a movie with me here. I'm not even permitted to leave the house this weekend, and if it keeps up next week, I really hope I can make it.
I sighed.
He went home late again. I stood up and let the fire in the hearth live. I whirled around and fixed my eyes on him. He's at it again with his gaze like this. It's odd. It's cold and strong. His jawline's hair is beginning to somewhat grow. He has a mature, yet imposing, appearance.
Kelsey, Andrew's wife said that he attracts a lot of women. She talked a lot about his brother, and Kairus is the only single of the family.
When fire and a rock fuse together, what kind of explosion could be?