When Gajeel and Levy found out the Trouble Twins are their kids…

Gajeel:”So let me get this straight… you two brats are mine and the Shrimp’s kids?”

Twins: “That’s right!”

Gajeel:”So, I’m you’re dad….”

Twins:”Yep!” 

Gajeel looked at them with a blank face for a moment.

Levy: “Gajeel? Are you ok?”

Gajeel:”Kids with the Shrimp….(Smirks) I like the sound of that!” 

He picks Levy up like a sack of rice.

Levy:”Kyaaaahhh! Gajeel!” 

Gajeel:”Come on Shrimp! Let’s get right too it!” he runs out of the guild with Levy screaming, leaving the twins behind.

Boy Twin:”Where’s dad taking mom?”

Girl Twin:”I think we might be born a few months earlier than anticipated….”