Levi was at your house now because your step brother invited him.

You got bored so you decided to prank Levi. You cooked a tomato soup and put a lot of salt on the spoon and then you hid it in the tomato soup.

You asked him to try it without him knowing that there was salt inside, you watched his reaction when he ate it, that's where he realizes that you pranked him when you started running in the living room.

"You're really dead, you little devil, get back here!"