In the fourth season premiere, Ross and Rachel reconcile but soon break up again. Phoebe becomes a surrogate mother for her brother and his wife Alice (Debra Jo Rupp). Monica and Rachel are forced to switch apartments with Joey and Chandler after losing a bet, but manage to switch back by bribing them with Knicks season tickets and a one-minute kiss between themselves. Ross begins dating an English woman named Emily (Helen Baxendale), and the season finale features their wedding in London. Chandler and Monica sleep together, and Rachel decides to attend Ross and Emily's wedding. While saying his vows, Ross uses the wrong name at the altar (Rachel's), to the shock of his bride and the guests.