A/N: I had some trouble coming up with a good prank. :P
Prank
"Wheeerrre's daddy?" Bolin says as he hides his face from his four-month old daughter behind a blanket. "Here I am!" he shouts, dropping the blanket from his face. His daughter's eyes go wide and she giggles and smiles when she recognizes him.
Bolin gradually lifts the blanket back up, covering his face. "Where's daddy?" he says again, and the infant goes quiet, searching for her father even though he's right in front of her. She just doesn't understand yet that he never left. "Here I am!" Bolin shouts, and the baby explodes into laughter, reaching for his face with her pudgy little hands.
Korra smirks as she watches her husband entertaining their daughter, and silently edges closer.
"Uh ohhh!" Bolin exclaims as he holds the blanket up by his face. "Where did daddy go?"
Korra quietly moves the baby into her arms and has to stifle a giggle as she swaps her daughter for a surprise for Bolin.
"Here I a-AHHH!" He lets out a womanly scream when he finds an ugly wolfbat face in place of his baby girl. "Not funny!" Bolin pouts, slapping the mask away from him as Korra bursts into a fit of laughter.
Korra can't speak, let alone breathe, and wipes at the tears in her eyes.