Jen felt the curse come over her over the phone, but you didn't get to become head cheerleader without learning how to be sneaky and manipulative.
"Transform or Dare?" Jen asked automatically.
There was silence on the other end of the line, and Jen knew the greedy little toad was wanting her to use both halves of the curse, and she needed to do that ASAP, so she said, "Alright, it's both. Hello, jerk, you are also dared to ask me 'Transform or Dare' when I finish this sentence, and moreover, the type of shapeshifter you are is a were-petunia, and your transformation into petunia form is triggered when you say 'Transform or Dare?' and will last a hundred years."
"Transform or Dare?" said the voice, and then Jen heard the phone drop on the other end of the line, as petunias were not known for having hands.
The curse passed back to Jen, and she didn't choose, which made it 'Transform or Dare?' for her. But since petunia's also don't have lips to tell people what to do, the transformation and dare were up to her.
"My transformation," she said to herself, "is also to be a shapeshifter, but with my sex, so I'll turn into a guy even more handsome than I am beautiful when I say 'Mars' and I'll turn back to an even more beautiful girl when I say "Venus" and I dare myself to have the guts to actually try this."
Jen hung up the phone, excited and a little scared, since she knew she now had the power of the Transform or Dare curse to use on someone else, and she had a cool power of her own. "Mars..." she said breathily, then watched as her beautiful breast shrank and hardened into firm, defined pecs, her his narrowed, her shoulders broadened, her hair grew shorter as she grew taller, and then she--he--ran to her full length mirror to see a really hunky guy with tousled blond hair and ice blue eyes, big hands and a rugged chin, standing there, looking incredibly stupid because he was crammed into this cheerleader's outfit five sizes too small for him, his midsection showing a treasure trail below where the sweater was riding up.
"Whoa..." Jen breathed, her voice deep, masculine and sexy, and she felt herself getting...omigod, it was an erection, right there beneath her cheerleader skirt as she got hot for her male self.
She should have asked for the clothes too, but Jen realized she could now be Jon, her alter-ego, and all she'd have to do was grab a few less-lame clothes from her dad's closet, then go out and have fun.
"Venus," Jon said, watching his chest inflate and his hips grow wider as his hair grew out, turning red and curly, and his chest continued to inflate, enormous double-d's at least, while his legs grew longer and his ass grew higher and finally Jen stood there in front of the mirror, female again, but not herself anymore. There was some leggy porno-chick supermodel amazon crammed into her cheerleading outfit.
Jen realized her mistake. She was a shapeshifter, yes, but every time she transformed, she became a new person, each one more handsome or beautiful than the last.
"Mars," she said, watching as the giant breast shrank and the hair and legs dwindled and darkened, and after a bit Jon was male again, but where the blond surfer hunk had been really good looking, the slightly short dark Italian guy was so sexy he was actually looking GOOD cross-dressing as a cheerleader.