Panel 2: Aw, jeez. Badly drawn butts aren't enough; now Robin has to have toddler gut?
Panels 3-4-5: Not sure what they're doing, but it appears they can communicate. Good, because it seemed as if Robin was going to be stuck in the reach-and-screech phase forever.
Panel 6: Gross, but inevitable.
Panel 7: Really gross.
Panel 8: Ditto.
Panel 9: A whole sentence! Way to go, Rob!
Panel 10: Great, try to get the Delicate Genius' attention.
Panel 11: So is he pissed at Merrie, or just that he was disturbed?
Panel 12: Uh...okay.