Man oh man! This could potentially be the funniest episode of Friends that I have ever seen!
There are two major plots: The first one is Monica and Chandler befriending a couple named Craig and Jenny on their honeymoon. Joey and Phoebe get offended that they need another couple to hang out with. I loved this part! And it carried a surprise twist; they fake-numbered Monica and Chandler! The hilarity continues when Joey and Phoebe offer their explanation behind the fake numbering, and Monica and Chandler argue over the reason why!
The second one is Ross and Rachel\'s sex tape. The fact that Ross actually taped it accidentally is funny all by itself, but the writers were able to stretch it and make it outrageous! This was easily the best episode of season 8.