How many watermelons can you carry?

A teacher in the 1st grade asks pupils: "How many watermelons can you carry?"

"I can carry one," little Annie says

"And how would you carry it?"

"I would hold it in both hands!"

"Good! Would anyone carry more?"

Little Maggie raises her hand: "I would carry two!"

"Okay, how would you do it?"

"I would put one under the left arm, and the second one under my right arm!"

"Excellent! I doubt anyone can carry more"

Little Tony disagrees: "I can carry three!"

"Oh? And how would you do it?"

"I'd put one under the left arm, one under the right arm, and I would spike the third one on my willy"

"Oh, that's inappropriate, Tony! Class, let's move on to another question!"

"Mrs. Teacher, I can carry five!" says little Johnny.

Teacher is very suspicious but the curiosity takes over: "Oh dear, how would you do that?"

"I'd put one under the left arm, one under the right arm, and I would spike Tony on my willy."