Dexter is a chair

I started to think that the Dexter & Deb Morgan characters in the TV series was based on the Dexter & Dee Dee in Dexter's Lab. Wavy kinda red hair & lab coat for both Dexter? Thin long legs & somewhat annoyingly talkative personality for Dee Dee & Deb? And the D initials for both brother & sister? And now both Dexters were being referred as a chair by their sisters. See? x)