You thought about it for a moment, then looked at your watch to see what you had time for.
"Oh shit babe," you said. "You've got to be to work in 30 minutes!"
"Crap that's right! I completely forgot!" She said. "Do I still have a uniform in your car?"
"I think so," you said with a shrug. "Lets go see."
Sure enough, she had left one of her work shirts and a pair of jeans in the trunk of your car. "I'll have to change on the way, we gotta go!" Brooke said.
You hopped in the car and took off down the street. Luckily your car has dark tinted windows, you thought, as Brooke peeled off her shirt. She kicked off her shoes and pulled off her skirt, revealing her thong and the considerable bulge of your cock.
"A whole day at work with your dick," she said with a smirk. As you pull up to a red light, you look over to see the head of her cock peeking out over the top of the thong, and the shaft steadily growing erect until Brooke once again had a full on stiffy. It looked so much bigger on her, and the head easily reached her belly button. As she ran her nail along the underside of the shaft from the base to the tip, her cock throbbed at the sensation. Just then the car behind you honked. Realizing the light was green, you took off once again.
"What a day this is going to be," Brooke smiled, inspecting her new equipment.
She finished getting dressed just as you pulled up to her job with 5 minutes to spare. She got out and handed you the bracelets. "Here, take these home - they'll be safer there than here with me at work. And if youre going to have fun while I'm gone, at least save some for me for later tonight," she winked. "Love you!" She said as she turned and ran inside.
You sat there for a minute contemplating. Brooke is at work for the next 8 hours. You're free for the rest of the day until you have to go pick her up, and you're stuck with her pussy at least until then, and probably even longer, since you know she's going to want to play - probably have full on sex - when she gets home. You know Brooke has a few vibrators and dildos at the house, as well as your computer so you could see what kind of porn your pussy reacts to. There's a sex shop a couple miles away, you could get a new toy for your new equipment - or even a new toy for Brooke's new equipment. You could turn around and go back to the magic shop, maybe there's something else you two could have fun with. Or, you could do what Brooke originally wanted, to spend the day out and about to see what life is like with her genitals.
You try to focus, but the rumble of your car engine is starting to rattle your new sex just right...
Decisions, decisions...