The Perfect Lab Partner

 is an episode of Dexter's Laboratory, airing on Cartoon Network on TBD 1999.

Synopsis
Sick of Dee Dee constantly invading his laboratory, Dexter takes drastic measures and creates a robotic assistant to help out, assuming the form of a girl a bit older than him. However, he didn't expect that she would desperately fall in love with him as she tries to make Dexter hers and only hers.

Voice cast

 * as Dexter
 * Kat Cressida as Dee Dee
 * Grey DeLisle as Debbie

Transcript
The theme song plays as the titlecard shows up. It starts with Dexter working on its latest invention: a dimensional remote. Dee Dee sneakily comes while music resembling the Jaws theme plays. He jumps scared and hits his head on the ceiling. He then falls down and turns at her.
 * Dexter: Marvelous! Almost done! Only a few more adjusts and voilà!
 * Dee Dee: (shouting) Hi, Dexter!
 * Dexter: Dee Dee, what is wrong with you to scare me like that?