Not quite yet

"Not yet," you tell her, "I need a better look at your pussy first. Roll over onto your back and take off your pants."

Alice does as you instruct, turning over and leaning forward to get her shoes untied. Once they are, she kicks them off, then pushes her jeans the rest of the way down her legs. She pulls them off and tosses them onto the ground alongside her shoes. Now that her legs are unconstrained, you tell her, "Now lie down and spread your legs."

Alice lays her head down on the table, the edges of her brown curls blanketing the end of the table. She spreads her legs and hangs her legs off the edge of the table, then asks you, "Like this?"

"Perfect," you answer, bending down to get a good look at the pink slit nestled within the bush of dark pubic hair. As you suspected, her pussy is wet and oozing cum from the stimulation you have given her so far. Your cock is straining in your pants, and you're having a very hard time not just grabbing her by the legs and fucking her brains out.

...Oh hell, why not? You undo your pants and pull them down, freeing your erect member.

"What are you doing?" Alice asks, peeking around her legs at you.

"Just being thorough in my inspection," you reply, "I'm going to need to use my penis for this next part."

"Oh... okay," Alice said, "I didn't think there would be any penetration in this examination."

"Well, you're wrong about that," you say, before positioning yourself between her legs and thrust into her. Alice bites her lip and does her best to hold back a moan. Her pussy is tight like you expected, but as you start going further in, you encounter a bit of unexpected resistance.

"You're a virgin?" you ask her.

Alice nods, looking up at you with those big green eyes, "Is that a good thing?"

"Oh definitely," you reply. You hesitate for only a brief moment, then grab her legs and pierce her hymen. Alice lets out a scream and grips the edge of the table as her virginity is taken. With the hard part over, you start fucking her with earnest. With the momentary pain, Alice seems to have forgotten about being quiet, as she starts gasping and moaning with every thrust of your dick into her pussy. With how much noise she's making, it's not too surprising when you are visited by the librarian once more.

"What did I tell you about keeping it down?" she says to Alice, piecing blue eyes glaring down at the girl.

"I'm sor-sorry," Alice says to her, her words staggered by the involuntary noises your pounding is forcing out of her mouth, "I'm tr-trying my best... but, unh, I can't he-help iiiiit..."

"Well that's unfortunate," the librarian says coldly, "Because if you can't keep your voice down, I'm going to have to ask you to leave immediately."

"I-Immedi-mediately?!?" Alice screams, the word mangled by a loud moan.

"I know what will help," you say in a burst of inspiration, pulling out of Alice. As the girl catches her breath, you find her panties in the pile of clothes on the floor and ball them up in your hand. You then shuffle over to Alice's head and tell her, "Open wide."

As soon as Alice does what you ask, you stuff the balled-up panties into her mouth. Alice's eyes go wide with shock and she lets out a squeal beneath her new gag, but you keep your hand over her mouth until she understands that you want her to keep it in. You go back to the other end of the table and stick your dick back into her, eliciting another muffled moan.

"Is this better?" you ask the librarian, giving Alice another few thrusts to demonstrate how effective the improvised ball-gag is at dampening her vocalizations.

The librarian looks between you and the now thoroughly humiliated girl under you. Eventually, she says, "That's better... at least acceptably so. But this is her last warning. One more outburst and I'm kicking her out."

"Understandable," you tell the older woman, and watch her hips sway as she walks off once more. Perhaps you might have to check her out before you leave after all, if you don't exhaust yourself with Alice.

Speaking of which, the poor girl is looking right back up at you with a mixture of shame and arousal. Her glasses are starting to slip off of her sweat-soaked face, and she's doing her best to fix them even as her body rocks back and forth on the table. Deciding you wanted to try and push her over the edge, you lean forward and work her sweater up her torso and over the large mounds on her chest. Even through her plain white bra, you can see that her nipples are already rock hard from arousal, acting as very tempting targets on already beautiful boobs. You place a hand on her waist to hold her steady, then with the other reach forward and squeeze one of her breasts directly over the nipple. This seems to do the trick, as her eyes close as she lets out a moan that would probably have gotten her in trouble again without the gag. Her legs raise up and wrap around your waist, pushing you even further into her wet cunt.

You take this as a sign to let go of her waist and use both of her hands to play with her boobs. Alice holds you in place with her legs while you do so, her knuckles turning white from holding herself steady on the now rocking table. As you keep massaging the soft flesh of her tits, her breathing and gasping quickens, and she starts thrusting back as much as she can. Eventually, you feel her pussy clamp down on your dick as she shudders and lets out a long, loud yell that very nearly pushes the gag out of her mouth. Her orgasm is enough to send you over the edge as well, and you shoot your cum inside her.

Alice's legs release you and drop back down to hang off the table. Exhausted, you stumble back and sit down in one of the chairs behind you. You catch your breath as you watch your cum drip out of Alice's pussy and onto the carpet, the girl still too busy recovering to even think about closing her legs. Eventually, Alice slowly sits up looking around the room in a daze. You notice that at some point during the home stretch, her glasses had completely fallen off of her face. Squinting her eyes so she can see you, she starts to speak, but the panties in her mouth make her words unintelligible. She pulls them out of her mouth, then holds the spit-soaked panties in her hand while she asks, "Do you think she heard that?"

"Fuck, I don't know," you reply, "And honestly, I don't really care."

Alice brings her legs back together and reaches down to retrieve her glasses from the floor. She puts them back on as she tells you, "I hope I get a good score at least... I'd hate for a moment like that to be ruined by my first bad grade in years. N-Not that I don't want you to be honest," she quickly adds in a hushed tone as she fixes her disheveled bra and yanks her sweater back down, "It's just that I had a lot more fun than I thought, even if it was kind of embarrassing to be shushed so many times, and to have the librarian and other people to see me with my pants down and... oh God, I'm rambling. I'm sorry, I'm just so nervous, and-"

"It's fine, it's fine," you interrupt with a wave of you hand. Realizing that she's probably expecting a score soon, you look around and find your clipboard on the floor. It, along with Alice's textbook, had been knocked off the table at some point during the fucking you had given her, but lucky both of them appeared mostly unharmed. You stand up and pull your pants back up, then pick it up before sitting back down. You fill out her name at the top, the look up and ask, "Alice, how old are you? I need to know for your score sheet."

"I just turned nineteen," she answers, looking at her wet panties and apparently trying to decide whether she should put them on as is or let them dry out first.

"Cool," you say, filling it in, "You know, I have a sister that's your age. Do you know Dana Doe?"

"Sorry, doesn't ring any bells," Alice says in an apologetic tone.

"Ah well," you say. You then look down at Alice's mostly blank sheet, debating on how you want to fill it out. And more importantly, how honest you want to be on it. After all, it could be more fun to mess with her, especially since you don't really have an attachment to her beyond being the one that took her virginity.