Believe it or not, Iron Man was not designed to accommodate passengers and the pair of them clinging, squirming and tensing up on him was of no assistance. It would be a close call to decide who was the most relieved when they touched down, a little rocky as Iron Man came in hard and overbalanced without his hands to help steady them, but safe in the serene oasis of the Tower's rooftop garden. The pair of them needed to find a better travel agent.
As soon as Tony was sure everyone was steady on their feet and no one had wet themselves in any conspicuous way, he let his faceplate slide back to properly greet the new guy. "Ben, right?" he asked. "Welcome to Stark Tower." Perhaps not the finest introduction, but the place would grow on him.