Castiel & Leonard Snart
He considered Leonard for a moment. "Cas. People call me Cas." While it was usually people from his world who called him Cas, he accepted it as a nickname from other people as well. He considered his options for a moment, then smirked slightly. "And what would you consider already intimate with, then?" he asked.
He tilted his head slightly at Leonard's next words, arching an eyebrow slightly. "Well, that depends, Leonard," he said. "What are your opinions on angels?" While he wouldn't hold it against the man if he said he didn't believe in them, or said that he didn't believe Castiel was one, he just wanted to know.
As he waited for the man's answer, he allowed a faint outline of wings to appear behind him. Just dark enough for the man in front of him to see, but not dark enough to attract attention from others.