by Alina Sawyer
Rick was finally getting the picture and when the look of understanding came over his face, Lyn said, "I think I'm getting through here. How do you feel about helping us with a little experiment on sexual response?"
Rick, while not shy at all, could see several complications in this scenario, and voiced concern. "Just what will this experiment involve, how far will we go, and who's going to get in trouble if we get caught?' he asked, almost without stopping.
Lyn thought for a few moments and finally answered, "Our research has shown that men in their middle to late forties often have trouble getting an erection without direct physical contact. We would be testing for that. If and when you get an erection, we would test for endurance. Finally, we are conducting a controlled laboratory test in my office, so when Cyn locks the door, we're safe. No one will get into trouble."
"Well, you've convinced me. What am I supposed to do?" asked Rick.
"Get comfortable, even if that means getting nude. It will be much easier to gauge your response if you don't have clothes in the way," said Lyn, as she buzzed Cyn and said, "Lock the door and come in here. Mr. Gaddis has agreed to help us in our research."
Rick felt somewhat self-conscious, not knowing whether to strip there, or go into the bathroom. When Cyn came in, she noticed his indecision and said in a comforting voice, "You are welcome to use the bathroom. There are some towels in there, if you prefer, rather than coming back out nude."
"Thanks," said Rick, as he went into the bathroom to undress. Suddenly, it hit him -- he was going to be naked with two of the most desirable women he had ever seen, and they were going to try and get him aroused! "Damn! I should write a book!" he thought, as he pulled off his shirt, then his trousers. His dick was about half erect, and already filling out his briefs. When he slipped them down his legs and off his feet, his cock stood up, fully hard and very erect. He opened the door and stepped back into the office.
The lights had been dimmed, and the mellow glow was saturated with an exotic aroma coming from several lit candles. A bed had been moved to the center of the office. The bed was covered in a luxurious red satiny material, and the top had been tilted. Rick took this in almost subconsciously, as his full attention was directed to Dr. Lyn and Nurse Cyn.
Each had discarded her dress, and stood before him in open-cup bustiers, filmy, matching thongs, garter belts, black stockings, and extremely high heels. If Rick's dick wasn't hard before, it surely would be now. The two women's bodies looked like classic Greek statues. Perfect blond hair, framing flawless faces, flowed past their shoulders and framed the most gorgeous breasts Rick had ever seen. Each orb was larger than the palm of his hand, tipped by sensuous pink nipples that were standing at attention. Curving in at each waist, the bustiers ended just above the navel, and from there, his eyes traveled further downward. Gracefully curving hips were framed by garters that ended at the lace tops of silken, black stockings. The stockings encased very well-developed thighs and calves, sliding into those 'come-fuck-me' heels.
Rick was simply awed by the sensuality of the scene, even though Lyn was holding a pad and pen. Rick did have the presence of mind to tell them, "Look, I don't know what will happen here today, but I want you to know that you two are the most beautiful, sexy women I've ever had the pleasure of looking at."
"Why, thank you kind sir," said Cyn, as she moved o Rick's side and eased her arm in his. "Flattery will get you some excellent rewards in this office." She guided him to the bed and asked him to sit at the end, kneeling between his legs.
"We need to take a few measurements for a benchmark. Since you already have an erection, this will be easy," said Cyn, as she produced a thin tape measure.
"Ready Lyn?" she asked. Lyn had been gazing at Rick's cock, and really wasn't paying attention until Cyn woke her from her reverie. "Uh, oh, yes, I'm ready," she said as she moved closer to the bed.
Cyn had stretched the tape measure from the base of Rick's dick, to its head, and exclaimed, "Holy shit! 21.6 centimeters! That's by far the biggest one yet. And it's so big around! Damn! 19.9 centimeters around. Do you realize how much cubic space that cock could occupy?"
Lyn had written down the measurements and the thoughts entering her mind made her knees weak. "That cock can fill even my pussy," she thought, as she returned to her desk and started entering the figures in her computer.
"Well, do you want me to start, or what?" asked Cyn, having laid the tape measure aside, and eying the beautiful shaft before her.
"Let me get my stopwatch set," replied Lyn, as she reached into a desk drawer and set a stopwatch on the desk. After zeroing it, she told Cyn, "OK, Sis. Do that thing that you do so well."
Cyn had removed her shoes and sat on the floor, her face and shoulders still between Rick's parted thighs. Looking him in the eyes, she said, in the most seductive voice Rick had ever heard, "Remember Mr. Gaddis -- I'm a professional. I assure you that this will be pleasurable for both of us." With that, she took his dick by the base and held it reverently in front of her face. She gently blew underneath the head, and finally licked there, blowing again, giving Rick a cooling sensation.
"That feel good?" she asked.
"Everything you do feels good," Rick answered sincerely.
"Well, I'm about to make it feel better!" she said, as she kissed his bulbous head, and licked around its rim, leaving it wet and glistening. Applying pressure with her hand holding his shaft, she caused the head to swell even bigger. It looked angry, as if it was about to explode.
A drop of precum eased out his slit, and Cyn wasted no time in slurping it up. "Ummm, that's good," she said, licking her lips. "Let's get some more wet stuff out of that big, fat cock."
She immediately slid her lips over the head, and began working her way down the shaft, sucking as if she were eating a lollipop. Rick had never felt such a live mouth on his dick. Moving slowly, Cyn's soft, demanding lips wormed her way down his eight-inch shaft, her tongue helping in the mission as she slowly gobbled his cock into her mouth. She paused only briefly when it reached her throat and the next thing Rick knew, he was buried completely in the mouth and throat of Cyn, feeling her throat muscles caress his head, and pulling as if she could tug a load of cum out of it.
This thought entered Rick's head, and he thought, "Indeed she could pull a load from my balls with that suction."
The bed was tilted so that Rick's feet were on the floor, his back supported and he was extremely comfortable. He finally reached down and took Cyn's head in his hands, as she reached up and began to caress his nipple, knowing that men love the feeling as much as women. Rick began moving Cyn's head back and forth gently. She took the hint and slid her head back until only his head remained in her mouth, then moving back until her nose touched his skin. Amazed, Rick could only enjoy what was turning out to be the best blowjob of his life. He cleared his throat and said, "Cyn, I've never had such a sexy blowjob. If you keep that up, I won't last long."
Dr. Lyn spoke up, "That's the point. She's such a good cocksucker that we use her to get the first climax out of the way. Then we can measure your response to visual stimulation, and get on with our research. Sometimes that gets interesting!" Rick noticed that Lyn was slightly flushed and assumed it was from watching her sister give a blowjob. What Rick didn't know was that when she had retrieved the stopwatch from her desk drawer, she had discreetly removed her flimsy thong, taken a vibrating egg from the same drawer, and inserted it into her pussy. Using the low setting, she was sailing along on a sensual high, unknown to either Rick or Cyn.
Cyn had increased her speed and pressure on his cock, causing Rick to hold her head still and say, "I'm about to come. Either slow down or get ready."
Cyn took his dick in both hands and looked up. "Oh, I'm ready!" she said, and dove back down on his straining cock. When it reached her throat this time, Rick held her head still, feeling his load churn up from the soles of his feet. About two inches of Rick's cock were still outside her mouth, and she pumped it gently with h
er saliva-slickened hand. Using her tongue to put pressure on the underside of his shaft, and her hand to pump the load, Cyn readied herself for the impending explosion, and not a moment too soon.
Rick gave a lunge with his hips and let nature take over. He shot a copious load directly into Cyn's throat, and as she swallowed and pumped, another load plastered the back of her throat. Swallowing again, she pumped harder, taking time to stroke his balls. This brought another string of jism from his dick, giving Cyn another load to swallow.
She eased her lips back towards his cockhead and used both hands to massage the last drop of cum from Rick's spent dick. When it popped from her mouth, there was not a drop of cum to be seen -- she had cleaned every drop! She held it at eye level and said, "What's my time Sis?"
"Four minutes, eight seconds," replied Lyn, as she clicked the stopwatch. "He's got stamina."
Rick suddenly felt like a guinea pig. He had just enjoyed the blowjob of his life, and all they were concerned about the time he lasted. Evidently the feeling showed on his face, because Cyn said, "Mr. Gaddis, that was incredible for me. Very few men can hold out anywhere near that long. I get off knowing I've got my lips wrapped around a real stud's cock. You are a very pleasant surprise, but we still have to record data. I assure you, that wasn't the highlight of the experiment."
Getting to her feet easily, she walked to Lyn's desk, putting a little extra sway in her glorious hips. Rick, feeling somewhat better, looked at his rapidly deflating dick, then back to the two sexy sisters. They conferred quietly, and noted Rick's softening dick.
Lyn told him, "Rick, please go to the bathroom and bathe your cock with cold water. We need it completely relaxed for the next portion of our test."
Obediently, Rick went into the bathroom and washed his dick with cold water. It shrunk to its normal size, and when he reentered the office, it was completely soft and hung down beside his balls. "Is this OK?" he asked.
"That's great!" exclaimed Lyn, getting up and approaching him seductively. "We can get started with the real research now."
She seated Rick in a chair near the end of the desk and said, "This portion of the test requires that you just look and not touch yourself. I need to record the time it takes you to reach full, ready-to-fuck hardness, with only visual stimulation."
Thinking he was about to view a porn video, Rick got comfortable, expecting a screen to come into view. What came into view were the twins, clothed so sexily, and moving like tigresses stalking prey. The desk was situated so that they were in Rick's line of sight, but were able to concentrate solely on each other. Cyn had removed her thong, so Rick was able to see her completely bald pussy. Lyn, on the other hand, had a very well-defined landing strip above her delectable pussy, leading Rick's eyes to where her lips met at the top. It was one of the most sensual sights he had ever seen. Even though he had cum within the last five minutes, Rick felt his cock begin to stir. He could swear he saw the tip of her clit protruding between her lips.
"Not yet, Stud. Give us a chance to get you ready," said Lyn, as she turned to face her sexy sister. The two embraced, with their sides turned toward Rick. Breasts mashed against each other, and were pushed out the side of the embrace. Sexy, flat stomachs met and thighs and pussies contacted each other. Luscious hips, striped by the contrasting garters, made smooth, round asscheeks even more delectable. Mouths opened and lips met hungrily; tongues searched for and found erogenous zones; hands caressed hips. Rick was entranced by the eroticism of the scene, and felt his dick leave its resting place alongside his thigh, and begin to rise toward the ceiling.
As the kiss lingered, Rick saw Lyn reach between her legs and extract a silver egg-shaped vibrator. She turned to Rick and said, "I see you're almost ready. Give me a few seconds to get everything ready, and then we'll continue."
She walked around the desk and retrieved the vibrator's control. Cyn had slid her beautiful ass on the end of the desk, with her pussy facing him. Lyn spread her legs and slid the egg along the inside of each thigh, moving closer to Cyn's pussy, which was extremely wet and glistening. Lyn bent down and kissed her sister's lips briefly before sliding the humming egg into her cunt.
When Lyn bent down to kiss Cyn's pussy, Rick was treated to the most delightful view of her pussy that he could imagine. Framed by her perfectly shaped asscheeks, hercuntlips were engorged with blood, and swelled almost to the point of touching, even when she bent over. A slight sheen of moisture was evident, enhancing the deep pink color. Rick had never seen such succulent, ripe pussy lips. He almost grabbed his cock, but Lyn turned around and said, "I'm ready if you are -- we need to move to the other end of the desk."
She took his hand and helped him stand, using her other to reach down and fondle his raging cock. "Now it's my turn to get what Cyn's been getting." She leaned back against the end of the desk, and started the stopwatch.
"OK, Rick -- show me why Cyn calls you 'Rick the Dick, she said,'" as she cupped her bountiful breasts and rubbed her nipples. Rick took a moment to absorb the vision before him. Proud, perfect breasts, topped by puffy pink nipples were his to devour. A seductively coiffed, glistening pussy was waiting to be fucked. A prominent clitoris was peeking its way from its hood, as if to say, "Come and get me!" Trancelike, Rick moved to press his body against hers, and reached for her breasts. Lyn yielded her luscious orbs, and Rick began making love to each of them with his mouth.
As he sucked her right nipple into his mouth, he gently pulled the left one to make it stand out. Looking down, he saw that he had succeeded in making it rise to a perfect point. Amazingly, the nipple covered the entire aerola, and gave him more to pinch and pull. Not neglecting the right nipple, Rick took his time and used his lips to work the same magic. He could feel it hardening in his mouth, and he bit it gently, eliciting a low moan from Lyn. She hugged his head, pulling it to her chest, as if she wanted intimate contact between her breasts and his mouth. Rick obliged her wishes, moving his mouth from one delicious tit to the other, giving each equal time, and allowing Lyn to work herself into a frenzy.
Her hips had begun to hump involuntarily, finding Rick's thigh, and grinding against it. He cupped her beasts, giving each nipple a last suck, and looked into Lyn's eyes, saying, "I guess that means you're ready."
"Oh, more than ready!" she replied, sliding up onto the desktop and spreading her long, luscious legs, displaying her juicy cunt, allowing Rick to feast his eyes on the center of her being. Her hips humped slightly, as she writhed on the top of the desk.
"In the name of science, hurry up!" she urged, but Rick was in no hurry. He had come about ten minutes earlier, and knew that he would last for quite a while. He was going to enjoy every second of this experiment.
Taking Lyn's knees and spreading her completely open, Rick licked along each hose-covered thigh until he reached the top of her stockings. Gently tickling the sensitive skin above the lace hose tops, he continued slowly to her dripping cunt. He moved his hands to the undersides of her thighs and pushed her further onto her back, giving himself the target he desired. Lyn's pussy and ass were put on display, ready for Rick's oral assault. He started kissing at the juncture of her lips, then down each side, ending up rimming her asshole with the tip of his tongue. Moving back up, he stiffened his tongue, and used it like a scoop to clean the copious juices streaming out of her pussy.
Inhaling, Rick knew he had never smelled a more intoxicating aroma. Raising his head, he told Lyn, "You have the most delicious tasting pussy I've ever had the pleasure of eating."
"Well dammit, get back down there and eat it!" she replied wantonly.
Rick, ever one to do as asked, put his face back in Lyn's magnificent pussy and licked as if his life depended on it. He licked her from bottom to top and from top to bottom. He tickled her clit, then sucked it completely in his mouth and lashed it with his tongue. Realizing that Lyn was about to climax, he held the nub with his teeth and exerted slight pressure. Still holding her legs apart, he kept his grip on her pearl and let
her ride her orgasmic wave, screaming at the top of her lungs, and holding his head to her pussy with all her might. Her climax, while intense, was short-lived. She pulled Rick's face from her cunt and said, breathlessly, "I don't know that I've ever been eaten to such an orgasm by a man. Where did you learn to eat pussy like that?'
"Scientific experimentation," replied Rick, smiling as he stood up and allowed Lyn's legs to drape over the edge of the desk. She sat up, taking Rick's cock in her hand, and moved it to her cuntlips.
"Now, show me what else you learned," she said, as she leaned back and slipped the head of his dick into her pussy.
Rick had never felt such heat from any woman. It was as if her pussy was a volcano, and red hot lava was about to spew out any minute. He stood perfectly still and enjoyed the heat and pressure until Lyn contracted her muscles and almost pulled him further in.
Rick looked at her with surprise, and she said, "I told you she has her talents; I have mine. My pussy can do exactly what her mouth can do."
Reaching behind her, Rick grabbed two handfuls of soft, yielding ass, and gently began to probe the depths of Lyn's tight, yet slick cunt. The heat he had felt earlier continued to caress his cock as it made its way through her love canal. Her pussy was extremely tight, giving Rick the feeling that the head of his dick was totally surrounded by steaming, yielding flesh that closed even tighter as the head probed deeper. Her lips enclosed his shaft, lubricating it continually as he drove deeper, finally feeling the head bump her cervix.
Lyn's eyes flew open, and she said, "No one has ever reached as far as you. Just hold it there and let me get used to it."
Rick was glad to oblige, and held himself perfectly still, his thighs tensed, his hands full of ass, and his cockhead buried against this goddess's innermost sensory nub. Knowing that she would not be able to remain still very long, he was more than willing to play her game. He flexed his dick, which caused it to move against Lyn's clit, and she grabbed his arms.
