Cisco's throat goes a little dry and he works to swallow to wet it, managing not to cough in the process. Then he licks his lips.

"And what would the invitation be for?" he asks, his voice dropping to a sort of rough, almost whisper. It's so different from what Cisco's used to, way closer to the night he met Lisa Snart than his experience with any girl he's actually dated. He doesn't think this is going to end the same way (Sirius is definitely not planning to kidnap Cisco and force him to build a weapons for him), but he's not exactly sure how to react. He does know that he's finding the conversation interesting, and in a way that's as much physiological as it is mental.