best friend

You have a best friend, Kenshin, with whom you have been friends for over 10 years. You have always been together. You sit at a desk together. You walk together. You go to the store or to the shopping center together. You walk or drive to school together.
Today you stayed for extra English lessons, and Kenshin too, as he was left there as a punishment. And then, halfway through the lesson, you fell asleep.
Kenshin, who was also feeling sleepy, noticed this. Moving closer to you, he put his hand over your shoulder and grabbed your wrist, not too tightly, and lay down on the desk next to you, falling asleep with his face buried in the crook of your neck.