Thor smiled, seeing his brother had fallen asleep. He had expected it to happen. Sitting there for a while, Thor enjoyed the comfortable silence, he had taken a nap with Loki sleeping next to him. The thunder god had woken up a few hours later, he looked around to realize what had happened before he would slowly and carefully get up, laying Loki down on the couch, Thor went to check on Riza. He noticed how late it had gotten and wanted to try and get Riza to get some sleep. So he headed upstairs. 
In the workshop upstairs, the room could be seen on the other side of the glass. The door opened for Thor as Riza was working on something. Holograms of schematics and pictures filled the room as music played. The music lowered as Thor came in and walked over to her and to see what she was doing. "Riza?" 
"Yes?" The young Stark asked, not looking up from her project. 
"Are you aware of the time?" 
"No. Never have unless I have something to do during the day." She answered. 
"What are you constructing?" The god of thunder asked next.
"A leg brace for dad. It's to help him walk around without him using a krutch." Riza explained.
"It is getting late. Loki has fallen asleep hours ago and you dont need to be staying up anymore than what you have been." Thor suggested, walking to a stool nearby and sitting down. 
Riza sighed before stopping and closing everything down with a wave of her hand. "Fine...Sleeping will he interesting." Turning to Thor, she smiled a little before giving him a hug. He returned the hug gently before following him out when he got up. She headed to bed. Thor took off his cape to cover Loki with it before sitting in one of the recliners, falling asleep soon after.