Google is reportedly buying online discounter Groupon for $2.5 billion. It's about time; the two companies have been flirting on Twitter for months. Get a room, already! hears from a well-placed source that the deal just closed. Talks between Groupon and Google were first reported 10 days ago by All Things Digital's Kara Swisher, who also said Yahoo had been interested in the Chicago-based organizer of group discounts. TechCrunch sleuth Alexia Tsotsis, meanwhile, discovered Google and Groupon's dealmakers have been trading saucy coded messages on Twitter since September, when they were apparently pursuing some sort of weird corporate three way thing. Hopefully this steamy group chatter can finally stop now? Awesome.

[Screenshots via TechCrunch]