Peter coughs to clear his throat and try and stop himself from blushing. He's glad to see Tony of course but did he have to walk up just then? At that very moment?

... Actually, that's very on par for his life.

"I wasn't-we weren't-It's-It's-that's not what we were doing." He crosses his arms and thins his lips as his eyes widened as tends to do when trying to get away with an obvious lie.