Unexpectedly, the boy farted, causing a little sand between his legs to shift.
She notices, and squeals with laughter, "How'd you do that," she asks?
"Easy," he exclaimed, "I just farted."
"Can I try it," she asks?
"Sure," he says, "anybody can do it."
So she strains, and concentrates, and grunts. Suddenly, there's a terrible explosion, the sides of the sandbox fly off, all the sand flies out.
The boy rolls up the hill, he finds himself upside down against a tree.
He groggily gets to his feet, runs over to where the girl is out cold, flat on her back, spread eagle.
He lifts up her dress, peeks underneath, and loudly exclaims: "Just what I thought,
Spoiler:
