You were Kuroo's friend, but you had never invited him to your place before. Today you decided to invite him to your place, and even with a sleep over

When you entered the house, you were met by a little girl. Your little sister. She is 5 years old and falls in love with everyone. When she saw Kuroo, she immediately hung on him

What's your name?? Are you Y/n's boyfriend? If not you will be mine

She hung on him. Your mother greeted him softly and was completely fine with it. Just like an angel. But Kuroo was completely fine with your little sister. So much so that you started to feel jealous. Your little sister had his full attention, so you just sat on the couch and your kitten jumped on you. You started playing with her, while your little sister was amazed at Tetsurou's height

Kuroo noticed that you we're jealous. He smirked

Kuroo: Hey, jealous to your sister?