Go for it

You hold up her bookbag.

"You left this at the library. Sorry that I had to dig through it to find out where you live."

You hold up the key to the building as well and hold it out towards her.
She blushes slightly and motions for you to come in.

"Mom, I'm going to talk to my classmate in the living room for a bit."
Her mother called back that this was acceptable and she led you further into the apartment.

As she moved, you took in the glorious sight of her ass rolling as her hips swayed.

Once you both arrive in the living room, she motions towards the couch and sits down at the other end.

"Thank you for bringing them back. That bag has a lot of my work in it."

You smile slowly, broadly, and entirely too insinuatively.
She swallowed and shifted in her seat.

"What?"
"You're a talented author, Charity. I especially enjoyed the part about you being stripped naked in the library and loving every moment of losing your choices."