"Please, I don't do it for the praise," Tony demured at Steve's threat, "Caring for the city's elderly means making sure they feel wanted. That's reward enough." He couldn't be shooed away easily, either, standing his ground as Steve invaded his space and nudging Steve in return, wet shoulder against him then hand up his back, deftly sneaking under his shirt. Tony's fingers curled there and he turned his face against Steve's neck where he finally returned the kiss, but he lingered there, trying to relax. Steve had a plan, someone was in control, it didn't have to be Tony.
It was just unfamiliar. Tony planned the nice evenings, he liked it that way and so far Steve, and everyone else, had seemed to agree. This put him on edge, stripped of his flash and vulnerable to some very damaging scrutiny.