Just a little chuckle from Loki at his cough. What happened to the key now was up to Clint, Loki just intends to make it as difficult as possible to use it. Whether he swallowed it or not.

He carefully removes Clint's pants and underwear. It was a funny thing, really. When he had absolute control over him he never saw him without his clothes, when he could have ordered them off at any moment. He gives his length a fleeting touch just to see what kind of reaction he would get.