What better time was there to flirt when the building might collapse and kill them both? Or rather would definitely kill him; he wasn't so sure if Steve could survive a building collapse, but he wouldn't put it passed the serum. "I'll be your sugar daddy if you're chucked... wait, you didn't get the brasses approval for this?" Of course not. May as well play it up.

He was able to keep up with the quicker pace, though he kept his arm around Steve for the sake of doing so. It was much harder now that Steve was so tall, but he didn't complain at all.