Partners' Michael Urie: Louis Has No Boundaries

When you find hot and heavy pictures of your fiancée with Derek Jeter, what do you do?
The logical answer might be to confront said fiancée. But if you're Partners' Joe (David Krumholtz), you tell your best friend Louis (Michael Urie) — as you've always done.
"That's just his instinct," Urie tells TVGuide.com. "They share everything with each other, and have for almost 30 years, so why not this?"
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For starters, there are new rules to play by following Joe's engagement to Ali (Sophia Bush). Also, Louis can't keep his mouth shut. And indeed, after Joe does show-and-tell with Ali's incriminating photo on Monday's episode (8:30/7:30c, CBS), Louis concocts a plan to play "Celebrity" with Jeter as one of the names to coax Ali into coming clean to Joe. But it all backfires when Louis' pop culture-illiterate boyfriend Wyatt (Brandon Routh) draws Jeter and can only muster up "he had hot desert sex with Ali" as his clue. (Check out the sneak peek below.)