She leaves him at his room

"How you've grown, sweetie," she said as she looked him up and down. He caught a look in her eye, but he thought nothing of it. "This was your old room. As you can see, it's a bit dirty, but I couldn't bring myself to change anything just in case you returned some day. I've been waiting to see you in that bed for a long time."

He blushed as he thought lewd thoughts. She smiled at him.

"Now, why don't you get changed? I don't want to you to go anytime soon either, you hear me?" She caressed his cheek as she spoke to him. "Now get changed, won't you?" She left him to his business.

He didn't have any clothes, nor was he left any so he decided he'd sleep without any clothes on. After all, it wasn't like anyone would come in the middle of the night.