The two continue to flirt as the young man presses Will for his life story before declaring he has "the worst ADHD!" and leading Will onto the dance floor.
The episode will feature Jack (Sean Hayes) also on a mission to date younger men, and Grace (Debra Messing) and Karen (Megan Mullally) getting honest with each other after a crisis.
It makes sense for Will to be back on the market. When the show returned last week, it ditched the plotlines of the 2006 finale, which saw both Will and Grace married with kids and reuniting 20 years after a falling out.
"If we had kids then the show would be about Will and Grace as parents, and if we ignored the kids and just focused on the four of us then we would be bad parents," Messing explained, "and no one wants to see Will and Grace be bad parents."
"So, we're back to the four of us, which is really where it all began and where the magic sort of lives."
Will & Grace airs Thursdays at 9 p.m. ET/PT on NBC. For more on the show, watch the clip below!