Lisa Kudrow says it'll never happen.
Maybe Phoebe would be better with Ross and Joey better with Rachel.
Lots of people think its a lousy idea.
They've shared three kisses and it never lead to anything.
They talk about each other's lovers to each other without getting jealous.
Phoebe's not over David.
Joey may have proposed to Phoebe when he thought she was pregnant but then he went and proposed to Rachel when he found out SHE was pregnant!
It might spoil their friendship.