"Ack!", she yelped at the sudden restriction of her movement.
Amy was so surprised she almost dropped her cactus. Instead, she stared up at Tommy's eyes with a raised eyebrow, but the serious expression dissolved into laughter. When she had caught her breath, Amy requested her freedom.
"Alright, alright. Get off of me, you big, furry, lunatic!"
She inwardly appreciated his thoughtfulness to avoid her raw, burning chest. The pain had lessened to a dull ache thanks to the water she was getting. In fact, Amy felt quite well enough to shove the last of her cactus into her mouth, swallow noisily, and thrust both hands into Tommy's stomach. This, she tickled with gusto.
(Gotta go for tonight, sorry.

)