The episode ends on the ultimate cliffhanger: just as things heat up between Ross and Rachel, her water finally breaks, signaling that the baby is finally on its way. "Friends" The One Where Rachel Is Late (TV Episode 2002)
The air in Monica’s apartment was thick with the scent of potpourri and pure, unadulterated rage. Rachel Green, now eight days past her due date, was no longer the glowing mother-to-be the gang once knew. She was a ticking time bomb in maternity pants, wishing she were a seahorse so the male could carry the baby instead.
While Rachel was busy making everyone miserable, Monica and Phoebe found a way to capitalize on her suffering. They began placing bets on exactly when the baby would arrive. Monica, convinced it was happening "any minute now," lost three days in a row to Phoebe, who eventually joked about moving money around her Zurich accounts to cover the growing stakes.
Rachel, desperate to get the "half-human, half-pure-evil" creature out of her, practically ordered Ross to help. Ross, terrified of "opening a can of worms" regarding their relationship, eventually gave in to a kiss.
