His parents were out and wouldn't be back until Sunday morning, so why not invite you to spend the weekend at his house? His parents wouldn't mind, they liked you a lot. And well, it's better than leaving a teenager alone, right? At least he'll be with his girlfriend, you.
You arrived there on Friday night. You watched a movie together while eating popcorn and cuddling. Then you went to do skincare together. Tendou sat quietly leaning against the headboard while you straddled his lap and applied a mask to his face and told him some gossip about the girls in your class. After the mask took effect, you both washed your faces and went to sleep cuddling each other. You had your head resting on his chest when you fell asleep.
Now on Saturday morning, you and Tendou had planned some things to do in the afternoon. He felt the morning sun illuminating the room and gently hitting his face. He looked down and saw you still with your head on his chest, even drooling a little. He laughed and kissed the top of your head. He felt you waking up, your eyes opening and blinking to adjust to the light in the room. But even though you had slept through the night, you looked so tired. Tendou tried to get you to get out of bed so the two of you could start your day, but you just whined.
He then placed his hand on your forehead and felt how hot you were, and he immediately understood what was happening. He chuckled and ran his hands through your hair, which made you snuggle even closer against his chest.
"Poor thing..."