"Noooooo," Wally said right along with Bart, staring at the nurse in that wide-eyed kid manner. Then quieted some, looking at Bart like 'Look! You got us in trouble.'
As soon as the nurse turned away though, he started to rapidly whisper-argue with Bart, which was just a bunch of buzzing that shot back and forth between them. He was insisting very much he was not a girl, and that he could holler if wanted because the doctor said so, and he never told Bart that he couldn't! He didn't argue over the ear flicks aside from shooting dirty looks at him, because really, Bart was a good distraction. It also meant the kid was feeling better, and he was inwardly happy for that.
And now and then he would say "Time," to Bart. The jabbering redhead would then fall entirely quiet for a few seconds, like when his arm bones were separated for proper placing. Wally was keen on distraction for the smaller stuff, but the few instances where Dr. Blake had to cut deep for a bullet or sliced into sensitive parts of the bone, he did clam up. Then it was immediately back to his joking.
"Yeeeeah, that's a nerve. That's definitely a nerve you're hitting. Tickles! Tickles a lot!" "Aw, I like red jell-o." "Can we have music in here? You know, something more soothing than this? Like Rammstein?" "Nurse, can you tell the good doctor that there is no gold there and he can stop mining my ribs for it?" "Ooh, look a battle scar! ...Aww, it went away..."
Then finally they were done. "WHOOT! You guys rock. For real." And suddenly a nurse was right there, jell-o and a dum-dum in hand. "Aww, rootbeer. You remembered!"
"Course," the nurse said curtly.
Wally sat up, rolling his shoulder gently. "I can run you doc. We owe you. Big time."