Many people have past relationships that they'd rather hide from their current significant others, and this week's "Partners" (Mondays at 8:30 p.m. ET on CBS) focuses on one particular liaison that Ali (Sophia Bush) would prefer to keep secret from her fiancé Joe (David Krumholtz). The episode's title -- "The Jeter Exception" -- might give you a clue.

Sadly, Ali's Jeter encounter doesn't stay hidden for long -- thanks in large part to a particularly energetic game of "Celebrity," an activity that Louis (Michael Urie) seems to take very seriously.

Check out our exclusive clip of this week's "Partners" below, which proves that Ali and Louis might actually have something else in common besides their affection for Joe.

"Partners" airs on Mondays at 8:30 p.m. ET on CBS.

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  • "Elementary"

  • "Vegas"

  • "Vegas"

  • "Made In Jersey"

  • "Partners"