[Steve's not surprised to wake up and find Tony gone, but he feels faintly disappointed that the other man didn't at least come back to stay with him. He might not be the Tony Stark he's used to, but he slips comfortably - maybe too comfortably - into the hole left in Steve's life, the hole that, if he's being honest, has been empty since Siberia. (It's his fault, he knows that, but that's never made the pain of it any easier.)

Groaning in pain, he eventually makes his way out of bed and into the shower, where he finds that some impressive bruises are blooming all over his body. Not exactly a surprise, all things considered. At least he has clean clothes to put on, and there's food waiting when he gets out of the shower, and he's pretty sure someone needs to nominate Pepper as a saint. He carries the food along with him as he goes looking for Tony, eating as he wanders through the tower. Like a lodestone, he's pulled down to the workshop, the most logical place for any Tony to be.]

...I don't know what a nanite is, but that doesn't sound very safe.

[Steve finishes off his burger, then rummages through a greasy bag and pulls out something wrapped in paper and shoves it at Tony.]

You haven't eaten anything yet, have you?

[He doesn't wait for an answer, just puts it in Tony's hand and gets another burger out for himself. His body really needs the calories right now.]

Scott brought the quantum...stuff. He just figured out how to make it work safely - Bruce tried, but he couldn't get it right.