She has changed clothes

At first you didn't recognize her. The conservative school uniform has been swapped for a tight-fitting, low-cut top and extremely short mini-skirt. Her high heels draw attention to her long, gorgeous legs, and the way she walks sends the message, "This body is red hot!"

Traci walks up to you and eyes you cautiously, as if she isn't sure she can trust you yet. "I had to change," she explains. "I have to wear that uniform all the time while I am at school, and it isn't very comfortable at all."

You nod and say, "Yeah, I bet it isn't," before realizing that you are staring at Traci's cleavage and haven't made eye contact yet since she came out of the bathroom. You look up at her face and realize she has applied makeup, too, which makes her look older and even sexier.

"You look great," you say, honestly.

She smiles and looks you over again, as if trying to make up her mind about you.

"I wasn't sure if my father had given you instructions to keep me in my uniform."

Technically, he hadn't. Technically, he hadn't even specifically told you to keep her clothed at all, but you were pretty sure that was an assumption that he made.

"Hey, you're an adult, right? Who am I to tell you how to dress? Particularly when you dress so awesome!"

Traci grins and throws her arms around you in a big hug. She says something about how glad she is that you see things your way, but you didn't quite catch it, since you were focusing on keeping yourself from getting hard, now that her body was pressed against yours.

Feeling the blood rushing to your face (and to your penis), you decide you'd better get her home before you do something you'll regret. You grab her bags and lead her to the rear.

Traci jumps into the passenger seat, and as she does so, her already-short skirt rises higher, showing her thigh almost all the way to her waist. If she has underwear on, it must be pretty skimpy because you can't see any evidence of it.

This realization causes you more discomfort as your erection begins to grow, despite your best efforts to control it.

You try to take your mind off of sexual thought by focusing on driving. Suddenly, Traci says....