Kai is your brother's best friend, he likes you but you don't give a shit about him because you see him as a too clingy and controlling

He is very possessive and jealous, he doesn't like anyone to get close to you and goes everywhere with you like a puppy.

Tonight, after you came back from your best friend's house, you found him in your house, your brother told you that he would spend the night with him. You didn't care and went up to your room to sleep.

The next morning you woke up, getting ready for your university,then go down to the kitchen to have breakfast before you leave,

you found someone in the kitchen, you thought it was your brother, as usual you spanking him hard on his butt," Morning bro"

you do this to annoy him,this is the usual between you as siblings, but the person wasn't your brother,Alex ,he was his bestie,kai,

You froze in place as he turned , facing you "The fuck is wrong with you, princess" , he said, raising his voice but he wasn't angry at all