All Grown Up! - Season 4 - Eps 3: Separate But Equal
As Phil and Lil's birthday nears, the twins realize that they are more different from each other than they think. Phil is getting to like girls, and Lil is wearing a pink training bra. After a shocking incident, they decide to have separate parties for the boys and the girls as they try to out-prank each other.
About All Grown Up!

Title: All Grown Up!
First Air Date: 2003-04-12
Last Air Date: 2008-08-17
Status: Ended
Rating: 7.6/10 (from 192 votes)
Language: EN
Seasons: 5
Total Episodes: 52
Network: Nickelodeon
Genres: Animation, Comedy, Drama, Kids
Production Companies: Klasky-Csupo, Nickelodeon Animation Studio
Synopsis
The former "Rugrats" tots now face preteen issues and dilemmas.
Cast

E. G. Daily
Tommy Pickles (voice)

Nancy Cartwright
Chuckie Finster (voice)

Kath Soucie
Phil DeVille / Lil DeVille (voice)

Cheryl Chase
Angelica Pickles (voice)

Cree Summer
Susie Carmichael (voice)

Dionne Quan
Kimi Watanabe-Finster (voice)

Tara Strong
Dil Pickles (voice)