Groupon and Foursquare have teamed up to bring Groupon Now deals to Foursquare users. It’s been known that the two companies were working together, but now users (and businesses) can reap the benefits.

“Groupon Now!, our real-time deal platform, continues to launch across the country – we’re up to 25 markets! – and we’ve heard from lots of you that Now! is your favorite new way to cure boredom,” Julie M. tells users on the Groupon blog. “Thanks again for updating your app and giving the service a try. Our product innovations are largely sparked by feedback from our customers and merchants; this was a marriage of both that is more than just changing the way people shop…it’s becoming an addiction.”

“As you get out and explore your city, just peruse participating Groupon merchants on foursquare, from lunch spots to live events, and purchase your Now! deal to apply immediately to your purchase,” she says. “Groupon Now! features the same high quality merchants you’ve come to expect from us, and we have thousands lined up in each Now! city ready to celebrate your foursquare addiction.”

Foursquare is not the first check-in service to utilize Groupon Now. Loopt announced it was working with Groupon on Groupon Now alerts back in May. Foursquare, however, is kind of the poster child for the check-in app space, so this new deal could really help Groupon push its Groupon Now service.

Foursquare announced last month that it had surpassed the 10 million user mark. Groupon recently filed for its IPO, but it’s being held up by further review over accounting practices by the SEC.