Ross eats Monica's kiwi pie, and has an allergic reaction to it. Even though he hates injections, Monica takes him to the hospital, meaning Chandler and Joey have to take care of baby Ben. They use him to seduce women, but forget the baby on the bus, and go through the hassle of finding him again. In the meantime, a professional guitarist plays in Phoebe's spot in Central Perk, leading to her being jealous and to Rachel feeling bad about it.
