You pick her up from "storage"

"Activate."

Your Love Doll reacts exactly as if she'd just been awoken from a long nap. She emerges, pigtails bobbing, from your locker and comes to an immediate stop, trying to remain obscured behind you and the locker door as homebound students crowd the hall.

"Can we get out of here?" she asks, preemptively covering herself.

You nod, hastily leading her off down the hallway and out the imposing double doors that serve as the school's main entrance. You manage to catch the bus just in time; a very crowded bus, as it turns out. The two of you quickly find yourselves jostled together by the uncompromising mass of passengers, the girl's big, tape-bound tits mooshing up against your chest as the bus speeds away from your point of departure.

She blushes, trying and failing to avoid your gaze.

You decide to break the ice:

"So, did you really mean what you said back there? At the end of your interview?"

"...Well, I definitely wouldn't have said it otherwise..." Harley grumbles. She glances around warily at the surrounding passengers, likely mindful of being groped in her current state.

"Okay. Well, why was that your answer?"

She scowls, appearing to consider the question for a moment.

"I guess... When I was listening to the other interviews, hearing myself say again and again that I was just... Used. Or treated like garbage..." she begins, exercising more self-control than you had seen from her previously in an effort to avoid crying on the bus, "...I decided that guys who do that shouldn't win."

"...Like, when it comes to the exam, you mean?" you clarify. "You're saying you want to help me pass?"

"I'm saying..." she starts, managing to look shockingly demure despite the words that are about to leave her mouth:

"...I want to help you ace it."

Mercifully, the bus ride ends very shortly after that little nugget. From there you practically power-walk home, and before you know it you're clomping down the basement steps in feverish anticipation of the busty, barely-clad blonde trailing nervously behind you.