The succession of explosions drew Tony's attention, and that of anyone not too close to the overpowering noise of the helicopters. One hand was held frozen in aborted movement, not touching the spike protruding from Cap's side, not wanting it there anymore and not wanting to touch it in case the result was more damage. They should have been waving for the attention of the coast guard, man obviously wounded, Tony's other hand landing on his shoulder and holding him firmly, afraid he might succumb. And instead...explosions.
Their response was slow, choosing confidence in Nightcrawler's abilities over endangering Captain America any further, but eventually (belatedly) they had to stumble onto the scene. An odd one it was, with the singed mutant at the center-- Tony wasn't aware that Nightcrawler liked to work naked.
"I hope the Cirque has a spare wardrobe," he quipped, otherwise at a loss. He hovered near Cap for just a moment longer, finally releasing the shoulder he hadn't realized he had kept a grip on and took a tentative step toward Kurt.