### 1.
Denise felt silly, hesitating this long outside her professor's door. She just had a simple question about Polya counting from the week's assignment. Waiting in the narrow hall on the quiet top floor of the Mathematics building, heart pounding in her chest, reminded Denise of her first week on campus. Everything had seemed so big and complicated and she'd been afraid to talk to anyone. That had been three years ago, and now the fear felt silly. She just had this simple question, and she knew Dr. Ward was always happy to answer his students' questions.
His availability was part of the problem. It made it too easy to give in to her urges. Denise had to steel herself. That was the real reason she was forcing herself to wait in the hall, even though the professor had propped his door open, so she knew he was free.
She had to be sure it wouldn't happen again. She had to be strong this time.
Denise had to be sure she wouldn't suck her professor's cock.
The thought alone would have made her laugh if it didn't simultaneously fill her with excitement and terror. It's not that there was anything wrong with what they were doing--well, no. That wasn't true: it *was* wrong for a professor and his student to carry on a sexual relationship. She knew that. But they were both consenting adults, and, in that sense, Denise told herself, it wasn't *wrong*-wrong to go down on Dr. Ward.
It had just started out as a fun, naughty, wild idea that had felt so good to indulge. But in the last few days, it had become a compulsion. After all, her question about the assignment really was too simple. She could easily have asked another student or looked online for an explanation. But as soon as the slightest pretence of visiting Dr. Ward occurred to her, she was here in the Math building, waiting outside his office. Waiting to slip inside, shut the door, and get on her knees as he came around from behind his desk, welcomed her in his soft, authoritative voice--gentle, yet so assured it made her wet--and then he'd take his cock out, and...
Denise knew she shouldn't keep letting it happen, but it was like a habit now. It had been her idea in the first place--her wicked, forbidden, desperately hot idea--but when had she become the sort of woman who seduced her professor? Even though they were both really, really into these trysts, Denise knew they mustn't go on. But each time she came here, Dr. Ward's cock slipped between her slick, waiting lips so easily. Once she felt him stiffen in her mouth, whatever pretext of tutoring had brought Denise to his office melted away, and she just went into some kind of cocksucking trance. It felt so good, and she always came so hard when he told her to, right after she swallowed. She would stumble out of his office in a daydream, in a haze of pleasure that carried her all the way to her next class.
She realized her hand had slipped into her jeans and she was rubbing herself while she fantasized about what was going to happen. No! She was fantasizing about what had happened *in the past*, not this time, and she should stop doing that before someone caught her masturbating in the hallway. She definitely would not suck his cock today.
No. Denise would have to tell Dr. Ward, "no". She knew he'd understand. They were both mature, responsible adults who respected and wanted the best for each other. She would make it clear this time that, as much as she loved giving him blowjobs, as good as it felt to let her mind shut off completely as his big, strong hands stroked her temples and he pumped his thick shaft in and out of her wet, willing mouth, and how incredible it felt when his muscles tensed and he suddenly gripped her hair with fierce lust as he moaned and came, his cock so deep down her throat when he spurted, his pleasure the only thing in the world...
Denise bit her lip as her thighs clenched. She slumped against the wall as she pulled her hand out of her jeans and looked at it, trying to catch her breath.
"Pull yourself together," she murmured through clenched teeth. "Please, for fucksake."
As she knocked and then peeked through the door, Denise tried to tell herself the quick orgasm in the hall was a good thing; it would make it easier to avoid sexual contact with her professor if she got the lust out of her system beforehand, right?
"Dr. Ward?" She glanced inside the cozy office, felt a brief pang of excitement or regret when she saw him sitting behind his desk.
"Denise, yes. Please, come in." Dr. Ward smiled, his teeth very white in his handsome brown face. He wore a dark grey blazer and blue Oxford shirt--what he called standard-issue professor uniform--and Denise thought they set off his steel-grey hair and blue eyes just perfectly. She'd always found Dr. Ward attractive. She supposed that was how the problem started.
The door shut behind her. Denise didn't remember stepping into the office, kicking the door gently to close it--she'd done this so many times the action was automatic. And she'd been too busy ruminating. It took effort not to slide down to her knees, because her reflexes insisted that came next. No, better to broach the subject now, before habit--and arousal, she could feel the heat building in her body again--took over.
"Dr. Ward, I've got to say something. I think we... I'm sorry. We need to stop."
The professor gazed at her, his expression calm and kind. She was relieved to see he didn't look angry. When he got up from his chair, though, she had a moment of panic. She was tempted to shout "Stay where you are!" But that felt ridiculous. She wasn't the police making an arrest. And she didn't want to seem *afraid*. She wasn't afraid of Dr. Ward. He was kind and helpful. Denise felt like a deer frozen in the headlights as the professor came around from behind his big, cluttered desk.
She tried to force herself to take back the initiative. She'd started out strong, sort of, but now she wasn't sure what to say or what to do. They were both on the same side of the desk now, and Denise looked at the telltale bulge in the professor's wool trousers. It was difficult to steady her breathing. Denise knew she was safe here. She was safe with Dr. Ward. She could trust him completely.
"Denise, you poor thing. You look so confused. Please, let me help you." Dr. Ward unzipped his fly and pulled out his cock. Denise made a sound halfway between a whimper of despair and a sigh of relief. She traced the veins that stood out along his length with her eyes. He was already fully erect, and the way his cock bobbed slightly in time with his pulse was soothing. She licked her lips. Denise felt less worried already. Dr. Ward was so helpful. She trusted him completely. Denise knew he would help her.
The professor stood close to Denise and raised her chin so she was looking up at his face instead of down at his erection. He put his hands on her shoulders. His touch was grounding, comforting. Warm and so familiar. Denise couldn't remember what she'd wanted to say, but it didn't matter. She was safe with Dr. Ward now.
"You're my very best student, Denise. Do you know that? I'm so proud of you." Dr. Ward's eyes were deep and warm. His praise made Denise's pussy drip as she stared at them.
"Yes, Doctor," she whispered. Her mouth was wet, eager, and she had to swallow her saliva. The reflex of swallowing almost activated the reflex to kneel. "Thank you, Doctor."
He smiled. She felt the head of his cock brush her thigh. It took only a slight pressure on her shoulders and she slid to the floor.
There it was. What she had come for. The reason she was here. Whether it was the reason she was "in the Math building" or the reason she was "put on Earth", Denise, at the moment, could not say. Dr. Ward's cock slipped effortlessly between her lips. Denise's hand slipped back under the waistband of her jeans. She shut her eyes, all her stress and worry forgotten, and sucked.
### 2.
Trish could tell Denise was upset even before the younger woman approached her at the end of the lab session, eyeing the other students leaving the room nervously. She refused to speak until the door had shut behind the last person, and even then she wouldn't meet Trish's eyes.
"Trish, I have to tell you something, and I need you to promise me you won't tell anyone. It's about Dr. Ward."
Trish's stomach tied itself in a quick knot. As Dr. Ward's teaching assistant, she was close to the professor and all his students. She couldn't imagine what would make Denise so upset, and she hated to think it could be something about the professor himself, rather than the sheer difficulty of his combinatorics assignments.
"You can tell me anything, Denise," the TA said, deciding after a moment's hesitation to put a comforting hand on Denise's shoulder. "My lips are sealed."
Denise sobbed at the contact, as though Trish's reassurance broke open a barrier. She stepped forward and let Trish give her a hug. She whispered, because she could hardly bear to admit it out loud.
"I can't stop... sucking his cock."
Trish stiffened, and Denise looked up at her. The TA's face was frozen in shock, and Denise grabbed her arms. "Listen, Trish! It's true. I'm sorry, I know it's wrong, but I just can't help it. Every time I go to his office for help with the class, I end up giving him head."
Trish was completely at a loss for words. She felt the need to say something, anything, if only to delay hearing more about their professor and blowjobs. "Denise, you... I mean, does he... he doesn't..." Trish's whisper was even quieter than Denise's. "Is he... making you?"
Denise gasped at the notion and shook her head emphatically. "Oh! No, no, no, Trish, please, it isn't anything like that. It's, you know, it's all consensual. I think it was definitely my idea in the first place. We just... we both want this, even though I know it's probably really bad, right?"
Trish blinked, her head spinning at the implications. Of course, it WAS bad, like Denise-and-Dr.-Ward-both-kicked-out-of-school bad, but at least Denise said it was consensual. At least it wasn't Dr. Ward using his position and authority to take advantage of a young woman desperate to succeed. It was still wrong, but Denise and Dr. Ward were both adults, and knew what they were doing... didn't they?
"Denise, I'm not here to judge you, but... yes, you could both get in a lot of trouble for sucking his--I mean, for having an... an intimate relationship while you're his student. But why do you say you can't stop?"
Denise took a deep breath, trying to calm herself. She wiped the tears off her cheeks, unable to meet Trish's eyes. "It feels like I'm addicted to it," she whispered. "The excitement, you know? There's this thrill in going up to his office and knowing I'm not really there for tutoring, I'm there to seduce my professor. And I know it'll work, too. I know he'll give me what I want. I guess it makes me feel sort of... powerful?"
Trish nodded, though she wasn't at all sure she understood. It just seemed important to let Denise get this out.
"But lately, the last couple weeks or so? It feels like I can't pay attention in class anymore. I can't seem to focus on the assignments or anything. I just end up distracted, like, daydreaming about the next time I can see Dr. Ward, so I can... you know."
"So you can... suck his cock," Trish finished, swallowing a lump in her throat.
