The morning after the study-room encounter, Dorian stood at the front of the lecture hall trying to keep his eyes off Iris. She sat two rows back, legs crossed, skirt riding high, pretending to take notes. He kept trying to peel his eyes away from Iris, but removing Iris from his view didn’t remove the visions from last night that would come rushing into his mind. When class ended, he kept her behind under the pretext of discussing an assignment. The moment the last student left, he stepped close.
“Iris. Yesterday was a mistake,” he said quietly. “We can’t be together in private anymore… we need to stay away from each other. The sparks will only get worse if we meet again.”
Iris nodded, cheeks flushed. “Agreed. That was a one-time-only deal… got it.” She left without looking back.
Lila, who had been in Dorian’s class since the start of term, lingered by the door and secretly spied on the exchange between Iris and Dorian. She had always found the professor attractive, but the sudden crackle of tension between him and the new girl Iris had intrigued her. Lila was no stranger to reading sexual undercurrents and she had noticed the dynamics between them since the first day Iris arrived. She decided she wanted in on whatever was happening.
Two days later, at the end of another lecture, Dorian pulled Iris aside again, but this time the students hadn’t all left. Lila was walking past but slowed down as she approached Dorian and Iris. Their voices were low, urgent but still audible to a wanting and listening ear.
“We’re not doing this,” he repeated. “We both know it’s too dangerous.”
Iris met his eyes. “I know but it’s hard. I only messaged you because I couldn’t contain myself. But OK, if you insist - we are done.”
Lila approached them with a confident smile. “You two look like you’re negotiating something interesting. Mind if I join the conversation?”
Dorian cleared his throat. “It’s nothing, Lila. Just coursework.”
Lila’s gaze flicked between them, noting the way Iris’s breathing had quickened. “Sure it is, Professor,” and she smiled as she turned to walk away along with the last of the students
Dorian looked at Lila walking away, and then turned to Iris who was looking at him. She had a hurt look in her eye as she turned away and walked off too. Dorian sighed, shaking his head as he thought about the mess he had created.
What a fucking mess, Dorian!
Later that afternoon, Lila stood outside Dorian’s office door. She had noticed Iris slipping away from another lecture in a hurry and she had followed. Her suspicions proved to be correct as she followed her all the way to the office block and corridor where Dorian’s office was. She could hear Dorian and Iris talking, voices raised in a tense exchange.
“You said we were stopping,” Iris hissed.
Dorian let out a deep but audible sigh. “I’m sorry I asked you to come here. I thought I could control myself, but I guess I am also finding this hard. One thing is for sure… we have to find away for this to stop.”
Right on cue, Lila quickly knocked and let herself in, closing the door behind her and leaned against it. “So this is the little secret. The professor’s fucking the new girl.” She stepped forward, eyes bright. “I was here first and yet, I stand second in line. I want some of whatever Iris is having too, please!”
Iris bristled. “We’ve agreed it’s over.”
Lila smirked. “Well… from where I am standing, ‘over’ isn’t going very well!” and she moved straight to Dorian, pressing her body against his. “Maybe I can help with making ‘over’ more permanent!” She let her hands drop to Dorian’s groin and squeezed gently. “Ahhh! Seems like my plan might be something of interest, Professor!”
Dorian pushed her away and gave Lila a stern look. “You have no idea what you are doing. Do you think I’m interested in sex? You think that is what this is all about?” and he turned to Iris. “I have been using Iris as a subject in a study that I have been working on for years. Whatever else has happened, is not of importance. That was a side effect of the study.”
Iris looked like someone had just slapped her. Her face was flushed, but Dorian couldn’t gauge what emotion lay under that blossoming color. Dorian moved away from the girls to behind his desk.
“In any case, the study cannot continue anymore. I underestimated the impact it can have, and therefore it isn’t safe.”
Iris’ eyes narrowed suddenly as she moved to Dorian’s desk and she leaned forward, placing her hands on the desk as she spoke.
“So you think you can do your thing on anyone you like, make them feel things they cannot control and then take advantage of them? And you think you can do this without consequence?” Dorian started to understand the emotion Iris may be suffering from. “Look around you, Professor. You now have two subjects willing to take part,” and she looked at Lila, who had a confused look on her face.
Lila took a couple of steps closer. “This study… what exactly is it? Is it to do with the lectures you have been delivering?”
Lila’s inquisitive tone sent shudders from Dorian’s neck down his back. He closed his eyes as he quickly assessed the situation he now faced. He knew he was too deep into this and that he risked further exposure through Lila and Iris if they decided to share wider. He opened his eyes with a realization that excited but also filled him with dread.
Don’t do this, Dorian!
The voice in his head was weak and had as much confidence as would a child, saying he would never ask for his toy ever again. He looked at Iris and then Lila. He took a deep breath as he started walking around his desk and past the two girls. He went up to his door, and opened the door. As he opened the door, he picked up a hanging notice on the shelf next to the door. It read DO NOT DISTURB in bold, capital letters. He looked down the corridor as he placed the notice on the hook, and closed the door. He waited for a second, and turned the lock on the door shut.

Dorian turned around, as he spoke. “Once we are done with this, you promise to never mention this to anyone. If anyone ever comes to me after this and asks about what happened, I will ensure you are never able to attain your degrees, here or anywhere else. Do you understand?”
Lila was first to understand what Dorian was agreeing to and smiled. Iris looked at Lila and back at Dorian, and her eyes widened at the realization.
“Both of us? Like, at the same time?”
When Iris said those words, Dorian felt a wind blow through his mind. All the dread, all the risk, and all the restraint went away with that gust and left Dorian… the deep, inner version of him… standing there. Lila noticed Dorian’s reaction and walked up to Dorian. She dropped to her knees, unzipped him, and took his cock out. Dorian’s developing stiffness gave Lila further encouragement and she took him into her mouth in one wet, aggressive swallow. Dorian groaned, the animal in him now fully awake again.
Iris watched for a moment, anger and arousal warring on her face, then stepped in and grabbed Lila’s hair. Lila came off with a filthy pop and grinned. “If you’re going to do this, we share him. Both of us or nothing.”
“Fine, tag team it is, but I get him first.” And she turned back to Dorian’s wet and glistening cock.
Iris watched as Lila opened her mouth and let his cock vanish inside. The slurping sounds that followed, Lila’s head bouncing back and forth and Dorian’s closed eyes as he placed his hand on Lila’s head was too much for Iris. She couldn’t allow herself to be completely replaced so she fell to her knees next to Lila. She reached out and grabbed Dorian’s cock around his base. She felt the slimy but intoxicating mixture of Lila’s saliva and Dorian’s precum and her pussy throbbed.
Dorian opened his eyes to see both Lila and Iris in front of him and it caused an escalation in his state. He stiffened a little and groaned. Lila reacted immediately as she pulled off and slapped Dorian’s balls hard. Iris let go of her hold, and Dorian let out a whimper and winced.
“What the fuck? Why’d you do that?” He grimaced down at Lila.
“After all that dialogue about us not being able to graduate and this and that, you think I… you think we will let you have your blast off and that’s it? You’ve got to be kidding- no, sir,” and she stood up and pulled up Iris.
They stripped quickly. Lila bent over the desk and spread her legs. “Come on, Professor! Time for you to study.” She looked towards Iris. “Come on, let’s present our study to the professor."
She reached out and grabbed Iris’ hand. She pulled Iris so she was standing in front of her spread ass and legs.
“Eat me,” she said and looked at Dorian. Dorian was completely consumed by what was unfolding and his hand was already stroking his cock.
Iris placed her face between Lila’s ass cheeks and started slowly kissing both cheeks. Her finger was gently rubbing Lila’s pussy and this caused Lila to issue out a slight moan. Iris was rubbing her own pussy as she started eating Lila’s from behind. She quickly developed into faster pace and Lila was clearly getting close from her wriggling and trembling legs.
Dorian dropped his trousers and pants. He walked up to the action and gently pulled Iris back. He kissed her deep and slow. Iris then stepped aside to allow Dorian space. He stepped up to Lila’s ass and drove his cock deep into her soaked pussy in one hard thrust. He fucked her with fast, crude strokes, the slap of skin loud. Lila moaned encouragement. “Yes! Fuck me the way you fucked Iris. Deeper, stretch this greedy hole.”
Iris climbed onto the desk in front of Lila, spread her legs, and pulled Lila’s face between her thighs. “Lick me while he uses you.” Lila’s body suddenly shook violently as the combined action from behind and front pushed her over the edge. She orgasmed hard and noisily as her tongue went to work sloppily while Dorian pulled out of Lila and slammed straight into Iris’s already-used cunt. Lila orientated herself so that Iris had access to her body and both girls moaned together now, hands roaming, fingers rubbing clits, mouths meeting in messy kisses between Dorian’s thrusts into Iris.
Dorian gripped Iris’ hips and started ploughing in deeper and faster, the animal fully in control. She came quickly after Dorian’s change in gears, squirting down her thighs with a loud, crude cry. Lila’s mouth was clamped around Iris’ nipples when Dorian suddenly stepped back.
“Both of you better get here now!” as he stroked his cock. Iris and Lila quickly got off the desk and knelt before Dorian just in time.
“Fuuuuuuuuuck!” Dorian arched his head back as he painted thick ropes of cum across both their faces and breasts. As Dorian finished pumping his love juice, Lila and Iris started rubbing his cum around each other's lips and breasts. They started licking each other clean, before turning to Dorian. They took his cock in their mouths together, tongues sliding together around the head.
Lila looked up at him, cum on her chin. “Package deal from now on, Professor. Or you get nothing.”
Iris nodded, already sliding two fingers back into Lila. She looked up at Dorian. “Your move.”
Dorian stood there, still hard, realizing that he was completely and totally unable to stop the animal now. He looked down at the girls, accepting that he would never be the same professor ever again.
