Hey guys, Plesi here. We're both really happy you like the story, please remember to send us a review and let us know what you think. There's another collab in the pipeline too, keep your eyes open for that soon.

Usually fall was Bonnie's favorite time of the year. She'd lived all over the country and nowhere was the fall weather more perfect than in Indiana where the air was just the right level of crisp and the leaves turned a riot of color practically overnight. But this year the only color she could really focus on was green, tinged with lust and fury. That was the color of Marceline's eyes as she stared intensely at her professor from the back of the room every single day. It was infuriating and uncomfortable, it made delivering classes more difficult than it should be and it gave her vivid flashbacks to those two nights she'd spent making the younger woman scream and moan for her. Her student, it was so wrong that it was practically irresistible. The only thing keeping her from ordering Marceline to her office and bending her over the desk was the very real risk of losing her job and entire career. It wasn't worth it, she figured.

At first she'd been horrified by the age difference. The idea that she was old enough to be anyone's mother, especially a college student's, had hit her like a freight train. But the more she thought about it and replayed their nights together through her memory the less Bonnie was disturbed by it. Age differences happened every day, so long as everyone was an adult and consenting did it really matter? Still, she couldn't bring herself to stare too long into those accusing eyes or to make any move to speak to Marceline. It was safer that way, her resistance was paper-thin and she wasn't known for her self control. If Marceline pushed Bonnie would cave and they'd be back in bed making each other writhe in pleasure before she could think it through and of course that was going to lead someplace bad. Right? When had a lesbian college professor at a very conservative Catholic school getting involved with a gorgeous student ever ended well for anyone? Not to mention that her bedroom activities were much less mainstream than most people were comfortable with. No, if her employers ever found out she was a kinky dominatrix with a thirst for tying women to bondage furniture and making them scream then she'd be lucky to get a job teaching night classes at the local community college.

Despite all that, despite her logic and her excellent reasoning and her her usual rational compartmentalizing of work life and personal interests Bonnie found her eyes irresistibly drawn back to the girl with the intense stare, over and over. Until one day she saw something that made her grit her teeth with a stab of unexpected jealousy.

It hadn't escaped Bonnie's attention that Marceline was especially close to the big blond guy she always sat with. Mertens, she remembered his name from the god-awful term paper he'd turned in that had been a poor rewrite of the one his older brother had submitted the year before. He'd always stuck Bonnie as a little odd, a little like he was trying just a bit too hard to be convincing in his chilled out almost-stoner dudebro persona. Like he was covering for something or he'd seen too many family friendly sitcoms and thought college was all about combing his hair and posing in his quarterback jacket. Because of course he was there on a football scholarship. Mertens was like a character from a made-for-TV Disney channel movie about wholesome college boys. And he had his goddamn arm around Marceline like he was taking her to a drive-in movie in the fifties. No, that wasn't happening. How could Marceline even sit there with him in her fucking class like nothing had happened and expect her to just stand there talking about the central nervous system? Bonnie saw red.

...

"Abadeer, Mertens, either of you care to tell me where PCML axons from the lower body enter the posterior column?"

They both sat up a little straighter and Finn finally removed his arm from around her shoulders. Marceline was glad about that, she'd only gone along with his stupid plan to make his dumb ex Phoebe jealous out of pity for the guy and so far the other girl hadn't so much as glanced at him. But Professor Sugar had, and now she was glaring at them both like she was about to take down a bullwhip and-

No, don't think about that. It didn't happen, you don't know about how her chest flushes mid-orgasm or the way she buries her hands in your hair when you slide a finger inside- stop thinking about it!

"Uh, the, uh, spinal column?" Finn was answering in confusion as Marceline fought to get her body's response to those memories under control.

"If you'd please put Miss Abadeer down for one second and move your brain back from your pants to your head you'd know that we just covered the fasciculus gracilis which is the location of the PCML axons in the posterior column. And since the title of today's class is 'axon positions within the spinal column' you can be safe in the knowledge that despite being something I'd have expected from a fifth grader your answer was at least technically correct."

The class laughed appreciatively and Phoebe finally glanced over at Finn just in time to see his entire face turn tomato red from embarrassment. But Marceline wasn't paying attention to that, she was busy watching Professor Sugar's face. The older woman looked angry, a little flushed, and irritated. Suddenly Finn's amazing idea to make Phoebe think he'd moved on seemed a lot less funny when she realized it probably looked like she'd moved on too, to Finn of all people. The thought of his big sweaty man feet touching her legs in bed made her shiver in disgust. But it looked like it had had an effect of some kind on Professor Sugar so maybe it wasn't all bad. Marceline clung to that faint sliver of hope for the rest of class and didn't hear a word more about the central nervous system. She was standing to leave and poke listlessly at her lunch again as she did every time she had anatomy in the morning when a voice calling her name made her look up and catch her breath. Professor Sugar was staring right at her with eyes that radiated fury.

"Abadeer, my office. Now."

"Ooh, someone's in trouble." Finn teased as the older woman strode away in the opposite direction from the press of students heading to the cafeteria. "What do you think she wants?"

"Probably going to spank me." Marcy replied distantly. Finn laughed and she realized too late that she'd said that out loud.

"Yeah, probably. Or she's gonna make you spend the entire day reformatting the references on your term paper. Or, you know, make you say a hundred Hail Marys for being caught with a boy's arm around you."

"You don't count, you have no balls." Marcy muttered as she shoved past him and struggled in the direction the professor had just left in. She didn't even wait to hear Finn's response, just left him gaping after her looking even dumber than usual. He sighed and turned in the direction of the cafeteria too. What was the worst that could happen? Sugar wasn't really going to spank his friend, Jake had said she was pretty chill when you got to know her. Pretty pretty too, she was respectable and single, at least there was no ring on her finger, and what would make Phoebe more jealous than him dating their professor? A plan began to form in Finn's mind, one he was sure was pure genius. He was going to either get his ex back and this time he'd make an effort to fulfill her needs, or he'd get a hot older woman and they weren't as into sex as girls his own age anyway, right? It was a perfect, flawless plan as far as he could see. Satisfied with his course of action and forgetting all about his concern for Marceline Finn stuffed his hands into his pockets and went to lunch with a jaunty grin on his face.

...

The tips of Marceline's ears felt like they were on fire and distractedly she wondered if they were flaring red with the embarrassed blush she was trying so hard to control. Had Princess noticed? But she remembered she shouldn't call the other woman that, not even in the privacy of her own thoughts. Had Professor Sugar noticed she was blushing? Could she hear Marceline's heart pounding out a complex rhythm behind her ribs? The younger woman's mind buzzed with questions as she stood before her professor's desk waiting to be acknowledged. Finally Sugar looked up and gestured sharply to the chair.

"Sit."

Marceline sat. By now the last of the bruising to her ass and legs had healed and she mourned the loss of that delicious pain, it would have been so hot to sit there feeling the ache from the marks her lover had left on her. But this was about her paper, she was sure of it. Or about Finn and she was going to get yelled at for being too demonstrative in class. But Professor Sugar just gazed at her with impassive eyes, making her squirm a little under the scrutiny. Finally the older woman broke the silence.

"Lock the door and close the blind." she ordered, still in that detached voice. Marceline stood and did as she was told. She wondered why she didn't feel more surprised, just hyper aware of her own body from the anticipation of what she thought was about to happen. The moment she'd let the blind down and the door lock had clicked shut there was a hand on the back of her neck and she turned eagerly into a possessive kiss, pressing herself as close as possible to the older woman and offering no resistance to the hands grappling with her jeans.

"Fucking Mertens now, seriously?" Sugar snarled around the kiss.

"No, just making his ex jealous." Marceline replied honestly.

"Come to my place tonight at seven. Bring your overnight things."

Marceline nodded and before she had a chance to reply she was pushed back into the chair by the desk, jeans and panties around her ankles and so turned on she could feel herself getting close before the other woman's tongue had even touched her. She pressed forward hurriedly against the mouth that was hungrily exploring her and was rewarded by the push of a slim finger entering her and curling forward inside, pressing against the core of her pleasure and sending her vision blurring with every pulse. Her hands gripped the edge of the chair and hips drove forwards relentlessly against lips and tongue and fingers until she was trembling with need and impatience. Sugar broke off from her frantic administrations long enough to meet Marceline's eyes with a burning stare.

"Come for me. Stay quiet." she ordered in a harsh whisper, before pressing her face back between trembling thighs and once again assaulting aching, oversensitive flesh with the tip of her talented tongue.

Marceline was nothing if not obedient. When she felt the crest of a huge climax begin to lock her muscles in place and clamp her legs tightly around the woman pleasuring her so thoroughly she bit down on her lip and let herself ride that wave as quietly as possible. Back arched and head tipped back against the overwhelming crush of orgasm it was impossible not to let herself become lost in the sensation as surge after surge of aching sensation rippled through her. Finally the waves eased and Sugar made as if to pull away but with uncharacteristic directness Marceline slid a hand through her lover's hair and gently gripped her in place, guiding her mouth back to caress her with lingering kisses.

"Softly." Marcy begged quietly. Her eyes were still closed and with her senses so overwrought the lightness of each kiss and caress was almost dizzying. She was unconsciously sliding her finger's through Sugar's hair in the same swirling circles that her lover's tongue gently danced around her and she lost herself to the patterns of sensation. Maybe it had only been a few moments more but the circling tongue grew a little more direct, a little more eager, and the banked fire Marceline hadn't even realized was still inside her flared unexpectedly as she came a second time. It caught her by surprise and she cried out as the pleasure suddenly surged through her again, fist tightening on soft red hair and hips jerking forward as she flooded her lover's mouth with sweetness. This time recovery was almost like waking up, coming back to the world from a place where only sensation and warmth existed until her awareness expanded to include the lips kissing her own tenderly and the hand cupping her cheek. Marceline opened her eyes again and let the lazy grin spread unchecked across her face.

"And that's all the sweetness you're getting out of me today." Sugar told her teasingly. "Can you stand? I really think you should eat some actual food on your lunch break before your next class. Remember this next time Mertens wants to put his hands anywhere near you. You're mine. Nobody else gets to see this, understand?"

Marcy nodded, she was more than happy with that arrangement. It was a little difficult to stand but she got to her feet on her second attempt and pulled her clothes back on, still grinning happily and eyes a little unfocused.

"Seven, your place?" she asked.

"Don't be late or I may have to punish you. Marceline?"

She turned, hand already on the door handle.

"Yeah?"

"If we're doing this then there are rules. There has to be, we've both got way too much to lose. Nobody can know and we must be distant and professional when we're not alone, you understand?"

"Of course."

"Good. Now go eat some lunch, act normal and get ready for tonight. Wear something you don't mind getting ruined and bring a change of clothes for tomorrow, you're not going to be able to wear whatever you bring tonight."