A faint smile. Among his species, sexual contact with another race would be entirely forbidden. There is a great emphasis on lineage, and even though most species wouldn't have the slightest chance of reproducing with a Chiss, there's always the slim probability that similar-looking races -- such as Chiss and humans -- inhabit similar neutral networks.

"Dirtscrapers?" He asks part of of curiosity, part because he's actually considering her offer, and he wants a moment or two to think about it.