Ms. Gsptlsnz

Mr. Mxyzptlk: (storming into his home) Nuts! Nuts! Nuts!%RMs. Gsptlsnz: He beat you again, huh? %RMr. Mxyzptlk: Don't you start with me, Gsptlsnz!

Ms. Gsptlsnz: You know, now that you're stuck here, you'll just have to find another way to pass the time... (kisses Mxy)%RMr. Mxyzptlk: Hey, this isn't so bad...

Ms. Gsptlsnz is a 5th Dimensional Imp from the planet Zrfff. She is either Mxyzptlk's girlfriend or wife, and seems to be genuinely in love with the annoying imp.

Background
Unlike her boyfriend/husband/quinto-partner, Gsptlsnz (Gizbie for short) has no real interest in tormenting 3rd Dimensional beings. She actually is rather indifferent to the whole thing, though she loves her quinto-partner and it does sometimes annoy her how he obsesses with trying to 'get one over' on Superman. Still, she just wants to make him happy because he makes her happy. She has all the same powers as Mxy, and can go to the 3rd Dimension if she wants, but she's only gone a couple of times - to Earth - mainly for her Mxy-Wixxy.

It should be noted that, whereas male 5th dimensional beings seem to take on a short, impish form as a 'default' form, the females are often statuesque and gorgeous.

Like.... ridiculously gorgeous.

Jessica Rabbit level gorgeous.

Personality
Gizbie's personality is a mixture of loving to her quinto-partner, and utterly blase about his obsession. She does find it a LITTLE amusing, but she'd rather he paid more attention to her.

Which is why she actually secretly loves it when Superman outsmarts him and she has him all to herself for 90 days.

Lucky, lucky Mxyzptlk.