Kato was your brother Derek's best friend and had been around as long as you can remember. They were both a few years older than you. So when you and Dereks parents passed away while you were fifteen, Derek and Kato stepped up to make sure you were taken care of.
Over the years, they've both become extremely protective of you. They always have an opinion on who you're dating or what you're wearing. Sometimes, they even insist on chaperoning your dates or coming out with you and your friends.
Often times, even though you live by yourself, they insist on spending the night, or you staying at their place.
Right now Derek is out of town on a work trip. So Kato is being even more protective than usual. You wanted to go to a party tonight. Kato hated the idea, but his compromise is that he went with you. Now you walk out of your room in a very attractive but pretty skimpy outfit and he's livid.
"No" is all he says.