(this is the female variant of the "Buddy James" branch)
When you arrive at the park, no one is around. You look around for a few minutes, until you see a figure. It's your friend, Jane!
"Hey!" Jane calls out, a huge smile on her face, "I see you decided to try on my little present. Wonderful!"
You walk up to Jane, looming over her with your huge body. "Why did you do this, Jane? And how, for that matter?"
Jane just laughs. "Oh, I found an old book full of all sorts of weird magic spells. I found one that lets me enchant an item of clothing that will transform whoever wears it."
"Why me?" you ask, "And why a bodybuilder?"
"I've had a crush on you for a long time," Jane confesses. "And I've had this huge muscle fetish for as long as I can remember! I just decided to put the two together!"
Jane is your friend, but you can't help but feel a bit pissed by the way that she tricked you. Still, the whole situation is sort of exciting; you can feel your cock strain against the fabric of those wonderful magic posing trunks that you're wearing under your shorts.
Jane has noticed the bulge too. She smiles at you. "I have a motel room just around the corner," she suggests in a sultry voice.