A situation of unusual tension where two people are fooling around but are unwilling to give their interactions a name. There are no expectations and no ground rules, and no one knows where they stand, but it's a safe bet that they're textually active and they probably see each other twice every three weeks and have pretty hot hookups.
Chick1: Paul texted me Thursday to party at his place Saturday night. I think I'll spend the night.
Chick2: Cool, so you're into him?
Chick1: Yeah, kinda.
Chick2: Is it going anywhere?
Chick1: Not really, but I want to consummate our nonrelationship.