The Keen Observer.

Your aunt beckoned you over with a finger and like a man entranced you got off the couch and wandered to her. She didn't look at you when you got there, instead busy concentrating on the first button on Brynn's blouse. She undid it and you gulped, watching her gently tug the top apart to reveal more cleavage. Your colleague flashed a glance at you but found herself inevitably drawn back to Leslie. It was difficult not to focus on a naked woman when she was sitting on your lap.

"How did it start?" asked the scientist, her voice quiet but it didn't need to be loud with how close your aunt was and where you were standing.

"He jerked off into a cup for me the first few times," said Aunt Les, not breaking eye contact with Brynn as she reached over and grabbed your shorts. She pulled them down and finally revealed your raging erection to the room. Brynn looked over at your hardness, seeing it in a new light, but she was quite familiar with it already so this was somehow a lot less stranger than it could have been. Your aunt gave you a quick look too... and a nod, as if to command you. You put your hand around your shaft and gently started stroking yourself as you watched the two women, the one in the nude slowly undressing the clothed one. "I drank it out of the cup after he came in it... but later on I just let him cum. Right. In. My..." she leaned in closer and closer to Brynn as she closed her sentence, finally kissing her again, Brynn's hands finding Leslie's hair as they tasted each other. "Mouth..." your aunt sighed.

It was like watching porn but in real life, and you felt like you could happily jerk off to this sight of two beautiful women just making out in front of you. You kept your motions steady.

"Did you like it?" inquired the researcher, still staring at your aunt as another of her buttons was popped open.

"Not at first," answered your aunt honestly. "At least... not the idea of it." She looked over to you, gazing at your cock as she continued. "It was strange... wanting something but being repulsed by it at the same time... but after my first taste I knew there was no going back. I didn't even like the taste in the beginning. But I guess cum is kind of an acquired taste." She reached out then and grasped your cock, gently pulling you closer to the couple. "I acquired it quickly."

Brynn was breathless, her face pale with surprise. She had gone out with a few very strict lesbians before and for all intents and purposes your aunt fit that bill. She had known many women just like Leslie who would never willingly hold a man's cock in her hand like your aunt was doing right now. You could only groan as she tugged you. Leslie was licking her lips, staring at the tip of your cock with the same lust she had when looking into Brynn's eyes.

"You jerked him off into your mouth?" urged your colleague, **** for an answer as she watched your aunt work your throbbing member.

"I do more than that," she replied, earning a soft gasp from Brynn. You were pulled forward again by your aunt and she leaned over to bridge the gap quicker, lips wrapping around your cock hungrily. You moaned, feeling her wet breath and her flickering tongue.

"Oh wow," Brynn sighed, observing, fascinated. She held onto your aunt's hips to help her keep balanced as she started bobbing on your cock. Your colleague looked up at you.

"How is it?" she asked, as if you were trying on a pair of shoes. "Is she good at it?"

You could only stare dumbly at your fellow researcher, until your aunt seemed to want to prove something and went deeper on your cock. A noise escaped your throat that answered her question for you. "Astounding," said Brynn, which almost mirrored your exact thoughts in that moment. "A lesbian who enjoys sucking cock... and is quite skilled at it too apparently." She leaned for a better look, paying close attention to your aunt's throat as she made you fill it with your cock over and over. "Is it the cum addiction that enhances her skills? Or maybe Leslie is just... a natural."

"I think it's the latter," you managed to finally say. Both women looked up at you and you felt a shiver through the spine. Two beautiful, lust filled faces right where your stiff wet cock was... what a morning this turned out to be. Your aunt pulled herself off you then, spit trailing from her lips to your penis. She immediately took Brynn's face and kissed her deeply, pressing her into the back of the couch. Brynn moaned in surprise but was quick to accept her and meet Aunt Les's passion.

"You think I'm good at sucking cock?" your aunt began, still holding Brynn's face. Saliva ran down the brunette's chin and she seemed dazed. "You should see how good I am at eating pussy," declared your aunt. Brynn went back to your aunt's lips for more, slurping at her mouth and hugging her tightly, needy. Leslie growled as they parted lips, both women's breaths heavy. "My nephew needs to cum," breathed your aunt. "I need his cum..." Your aunt's hands went down Brynn's neck, then down her shoulders... one hand trailing down her arm then taking her wrist. She lifted Brynn's arm, bringing her reach towards you until your colleague's fingers were mere inches away from your spit covered stiffness. Brynn's eyes darted to yours and then she grasped onto your cock. The feeling sent a jolt through you and you cried out at the unexpected pleasure. Brynn had never handled your cock without gloves before... now you felt her soft skin along with your aunt's spit and she was already starting to jerk you off. Leslie smiled, letting go of Brynn's wrist since she was working you on her own.

"Holy hell," you croaked, the slight twist as she yanked you demonstrating the researcher's practised technique. She was extremely efficient at gathering samples and now you could fully appreciate why. The noises coming out of you were impressing Leslie as well and she continued to kiss your colleague as she stroked you towards a quickly approaching release.

"That's it, make my nephew cum for me," purred your aunt. Brynn hummed as she tasted Leslie's mouth but her eyes never left you. She kept looking at your cock or at you while your aunt made out with her. "Make him cum in my mouth... feed me his cum, babe. Feed me my nephew's cum."

"He's close," said Brynn knowledgeably. "Get down." There was a strange harmony between the two women, Brynn's instructions automatic, your aunt following them instinctively. Aunt Les slid down onto her knees between Brynn's, turning to directly line her body with the direction of your cock. Your aunt's face was level to your dick and she leaned over Brynn's lap as your colleague pulled you closer to the woman's open mouth. The scientist's stroke was firm and purposeful, and after three more seconds you were there. "Here it comes," said Brynn as you spurted. It was odd having someone else aim your cumshots for you, but Brynn was nothing but precise. The first two ropes flew into your aunt's open mouth then Brynn brought the head of your cock down to rest on your aunt's lower lip. She continued to jerk your eruption into onto the lesbian's tongue and your aunt shivered. "Still going..." said Brynn, her eyes getting wide as your cum continued to flow, your cock pulsing in her grip. She only just remembered about the serum but once she did she started to pump you harder. The change in pressure made you grunt and another bloom of pleasure assailed you, weakening your knees for a moment but you probably wouldn't have fallen with how solid Brynn's grip was.

You could see your cum starting to fill up your aunt's mouth to the limit, whiteness rising from her throat and about ready to spill over her lips. "There's so much cum..." gasped Brynn, seeing that you were still going. Your aunt had to pull away and she leaned back, swallowing dutifully the sticky, excessive mouthful. But her hands were out and Brynn continued to jerk you off into your aunt's palms. Her slender fingers couldn't hope to contain the remainder of your load alone though so Brynn brought her hand over too. You were now spilling your hot seed over both women's cupped hands as your aunt watched in amusement. When you were finally done Brynn saw it necessary to give you one last good long squeeze and you never felt more like a cow on a farm until that moment, spraying a final jet into her hand. She let you go and you stumbled backwards a bit but stayed upright.

Brynn watched your aunt go to town, first lapping up your cum from your colleague's hand then drinking deeply from her own palms. Brynn made sure she got every drop, helping your aunt find spots on their fingers that she might have missed, your aunt then eagerly putting her lips and tongue to clean it all up. When she was done Leslie climbed back onto Brynn, and she gave her a long, sticky, appreciative kiss. Brynn moaned pleasurably. "I remember that taste from last night," she said with a smile. "It must be from how big his loads are... how much you get to drink now." The woman pressed her lips against Leslie with purpose, wanting to study the flavors. She looked at you after they parted, breathless. "Your loads are huge now," she said.

"Big enough to share," noted your aunt, grabbing at your still hard cock. You grit your teeth, prolonged erection still sensitive.

"Oh my- have you been using the gel I gave you?" asked Brynn, her professional demeanor returning.

"Only once," you said, wincing as your aunt stroked. That would not do. Brynn gently pulled Leslie's hand away from you.

"He needs a bit of rest," she told your aunt, trying to placate the cum addict's instincts upon seeing a hard cock.

"Right..." breathed your aunt, still staring at your hardness with longing.

"In another three hours we should probably apply some of the gel," said Brynn, nodding to herself. "We want to reduce the swelling as soon as possible to prevent too much pain from building." To that you nodded in agreement. You also noted her use of the word 'we'.

"Are you two hungry?" asked your aunt, because she was feeling quite satisfied herself. "I can make breakfast." Brynn probably wanted to eat something other than breakfast right now, but she accepted the offer and also said she would help. You were admittedly starving too, and a little dehydrated. Your aunt got up finally, turned away from Brynn and bent over slowly to pick up her towel from the floor. Your colleague gripped the couch cushions and only relaxed again when Leslie straightened and picked up a robe hanging on the back of a chair to wear. You pulled on your shorts too as your colleague got off the couch.

"You sit down for a bit," Brynn said. "You need to recover. Such a big load would have taken a lot out of you." You nodded and watched Brynn go join your aunt in the kitchen.