That's What You Get, Folks, For Makin' Whoopee

Luke punches Christopher after finding out Lorelai slept with him. After not being able to go on the trip to Asia with Logan, Lorelai throws Rory an Asian-themed party, but Rory finds out that Lorelai slept with Christopher and gets upset. Lane and Zach return from their less-than-perfect honeymoon in Mexico. Lane reports to Rory that sex is overrated; learning that she is pregnant does not help her opinion. Luke and Lorelai begin to deal with their break-up.