During this long experimental phase Peter had been seeing a lot of Anna. They spent weekends and occasional weekday evenings together. They enjoyed many of the same activities, and spent nights at each other's apartments. The early trauma with Katya was soon forgotten and occasionally they went out as a threesome, though usually Peter and Anna used Peter's place when Katya was home.
Anna was aware that her friendship with Peter was making Katya lonely so, somewhat hesitatingly, she broached an unusual subject.
"Peter, what would you say to me sharing you with Katya? She is so lonely and she and I have been very close for the past 15 years. We both knew that if one of us was lucky enough to find a partner, the other would lose out. But you do find her attractive, no?"
Peter was dumbfounded "are you sure you want this?" he questioned. "Have you asked her about it?"
"No Peter, not yet" she replied, "but I want to. What do you think? Not every time, but occasionally? But I don't want it to spoil what we have. I have never had a partner like you and I don't want to lose you."
"I am willing to give it a try" said Peter, "if she is interested." Who would say no to an offer like that, he wondered?
There was even more news. The next morning, Alastair invited Peter for coffee after squash, which was unusual. Alastair was quite a positive person but that morning he had been even happier than usual.
"Great news Peter, I'm going to be a Dad" he beamed. "We have been trying for several months now but Jane has missed two months. She went to an ObGyn person yesterday and was confirmed. She puts it all down to your cream! She says she feels much more 'frisky!. You may have a tsunami once your product reaches the market!"
"Somehow I doubt it" Peter said and they laughed together. "I'll give her a jam jar full if she really likes it. Perhaps we can convince her to be in our first commercial!" They laughed again.
Back in the lab Peter was scaling-up production of his cloned enzyme using baker's yeast as the vector. The 100L reactor run worked well and the first batch was formulated using Peter's own enzyme. This converted Anna's inactive surface protein to an active form, and kept her skin vitalized. He also added an enzyme to keep the components from oxidizing, in addition to vitamins A and C. This was to greatly increase shelf life.
The volunteers were all given 250 ml jars of the new product, enough for several years of use. The data and large samples were given to the Pharma group and Peter supplied significant amounts of his enzyme, but not the recombinant yeast which produced it: that stayed with him, at least for the time being. Several months were to pass before the Pharma group met again.
Peter was still seeing a lot of Anna. Nothing more had been said about 'sharing' and Peter did not want to raise the subject: perhaps the two women had disagreed? Not a problem for Peter, he was quite comfortable with the arrangement with Anna. They were both busy and professional people and their 'together time' was beginning to feel like friends-with-benefits, again.
However, one night at Anna's apartment, after a long and languorous evening of sex, Anna and Peter had finally drifted off to sleep when their bedroom door opened. A shadowy figure slipped in to the room and quietly got in beside Peter. His breathing continued unaltered. The platinum blonde snuggled up against Peter and extended an arm across his chest. He slept on. Then a leg across his leg: no action.
Finally Katya reached down to fondle his cock: it responded without waking its owner. She had forgotten that Peter was well-endowed. Not giant but well above average. She dived under the single sheet and captured the growing member with her mouth. Peter woke up, Anna slept on. Katya looked at Peter and grinned. She put her finger to her lips -- 'be quiet' -- then went back to her cock-sucking. Peter closed his eyes and lay back. He was seriously aroused.
Katya tasted the beginnings of the ejaculate: the 'pre-cum'. She licked her lips: sooo good! Then she slipped a condom on him and mounted him, slowly sliding down his greasy pole. She had been dreaming about this for many days, weeks even, since the day she met and fellated him in the lounge.
Peter felt so good inside her. He stretched her as she had known he would, and she kept a slow motion, almost allowing Peter to slip out, then dropping down to pubis-on-pubis. So good. Katya reached up and pinched her nipples, little eraser-stubs on small a-cups: she could feel a climax building. How long had it been since her last male-induced orgasm? Far too long! Perhaps that was about to change: she hoped so.
Katya guessed Peter and Anna would have been been active several times that evening, so Peter might be slow to react. But she could feel he was rising to the occasion and, after about ten minutes, he raised his hips and emptied himself into her. He stayed inside her for some time while she she lay on top of him. They both slept.
Anna woke first that morning. She looked across the bed and smiled as she saw Katya and Peter sleeping in an embrace. Walking quietly out to the kitchen she made a hot drink and thought about the situation. She was happy that Katya and Peter had made out last night though she was unaware of when Katya came in the room. Hopefully this could re-establish the cousins' good relationship and keep Katya happy too; she knew of her cousin's frustrations with the fashion business and her difficulty meeting suitable men.
What Anna was more concerned with, however, was her relationship with Peter. She had become very fond of him, and she knew he had been close to other women over the past few years. But did she love him? Had she ever been in love? She had never allowed herself to become as close to any man as she had to Peter, but could she marry him? Deep down inside her, she knew she wanted a baby, sometime, and Peter would be an ideal donor. Did she dare ask him?
Her mother had maintained a close relationship with her own partner for decades, dependent on him as a source of 'essence', but they had never married. Now with Peter's expertise, the need for a close relationship for 'essence' no longer existed. There were so many questions!
Anna finished breakfast and showered. She crept back into the bedroom to pick up clothes for work and as she left the room she heard someone stir. Before anyone emerged she had left for the school on her bicycle.
Katya looked at the man beside her; he was still sleeping. He reached over and touched him, remembering how she felt during the night. She wanted him again. Peter was flaccid, lying on his side. Katya touched his cock: Peter woke immediately and smiled at her.
"Just a minute; don't go away" he said as he shuffled off to the washroom. She could hear him pee and brush his teeth.
"Now, where were we? I'm sure we were in the middle of something," Peter grinned. Even after a restless night he was amazed at how beautiful she looked.
Katya excused herself then and used the washroom too. When she returned Peter was erect, and waiting.
"Oooh, is that for me?" Katya giggled.
"Who else?" he replied, and Katya leapt on the bed, kneeling astride him. She held his cock in one hand and rubbed the head along her slit: she was already wet. She eased down onto Peter thinking how wonderful it felt, filled up with 'man'. Neither of them moved.
Katya sat up and touched her breasts, twisting her nipples.
"Peter, I know my tits are small, but are they too small for you to kiss?" She asked, looking at Peter though hooded eyes and pouting.
He smiled and sat up, reaching around her to bring his lips close to her. He kissed her nipples, then held one between his teeth, then the other.
"Does that answer your question?"