Jesse Tyler Ferguson and Eric Stonestreet's Awkward Moment in a Kansas State Frat House (VIDEO)
updated 10/01/2014 AT 03:00 PM EDT
•originally published 10/01/2014 AT 09:20 AM EDT
The pair dropped into Stonestreet's old fraternity at Kansas State University (at 2:30 in the morning), and decided to pop into Stonestreet's old room to see how the place had changed.
That may not have been the best idea, as Ferguson explains.
"And there was a man in there with his lady friend, and they were under the sheets doing naughty things, and we come into the room, and they're like, 'Heyyyyyyyyy!' "
But despite the initial awkwardness, the couple recovered, and even asked to take pictures with the Modern Family stars.
The Emmy-winning ABC hit recently launched its sixth season: Tune in Wednesdays at 9, and check out the full clip of Ferguson's interview with O'Brien below.