"This has never happened before. I'm terribly sorry.", said the clerk and passed the smoothie to Felix.
"I hope this will work", said Felix and drank the smoothie in one gulp.
"Do not worry. This is the double puberty smoothie. It will restore you to your past erm... size and it counts as a refund, too", explained the clerk.
"You mean this is going to make me hit another puberty, but I'm already 22!", said Felix as he started feeling the changes in his body.
First, he felt his cock growing again in his underwear, reaching its previous size, but also becoming painfully horny.
Then...