Joey appears as a celebrity contestant on "The $100,000 Pyramid," with its actual host, Donny Osmond (himself), but Joey's dubious IQ costs his partner the prize money. Meanwhile, Monica and Rachel hire an ungainly stripper, Roy (Danny DeVito - "Taxi"), without seeing him first, for Phoebe's bachelorette party. Also, Chandler and Ross attend a college reunion and meet an attractive woman they both promised not to date during school.