Originally, Mark had been planning to visit the "safehouse" again the following weekend and meet with Stephanie.
Holly had made him reconsider.
They had decided to meet again Friday night, this time at Holly's apartment, a rather smallish but neat little place on the fourth floor of an old-looking building in one of the less respectable parts of the city. Mark had expected only a little more conversation, but mere minutes after his arrival, Holly and he had been out of their clothes once again, fucking until both were sweaty and tired.
As Holly gently kissed his chest, relaxing on him after his third orgasm in a row, Mark couldn't help but chuckle softly.
"Heh."
"What?" Holly tilted her head slightly to the side and looked at him. "What's so funny?"
"This here," Mark said. "It's so unreal."
"Why'd you think that?" Holly asked, kissing his chest again. "You seem to be having fun, I certainly am having fun -- what's unreal about that?"
Mark looked up. "That you're going to have my baby," he said, "and Tanya, AND Stephanie, AND a number of other women I haven't even met yet. And that you still seem to be so... interested in me, even after yesterday."
"You're good," Holly smiled. "That's all there is to it. We fuck, and it's obvious that you care I have my piece of the fun. And besides, you know about our little secret. That makes it safe to continue meeting you. Can't think of a better way to relax."
"So you just asked to see me again so that we could fuck a little more?"
"Yeah, pretty much."
"Meh."
Holly pursed her lips in what looked like the mockery of a pouting face. "Aww," she said, "did my little boy expect more than that?"
"Sorta," Mark murmured. "I know that to you, it probably doesn't mean much, but I'm going to be the father of your baby, and I was hoping... well, that would count for a little."
"Honey," Holly smiled, "trust me when I tell you that you ARE already something very special and dear to me. More than any other man than I had before. More than anybody who gave me a daughter before. You're someone I can come back to, and even more importantly, you are someone I actually WANT to come back to. You have no idea how rare this is, and how special that makes you."
"It does?"
"Oh yes, it does."
Holly sat up on Mark's belly, and he could feel the wetness of her pussy on his skin. A good deal of it, he realized, probably came from him. Not that he bothered. Much. In fact, the sensation turned him on quite a bit, and he felt his dick stiffen again. Minutes after he had just come for the third time in a single evening.
Not that he would have complained about that, but slowly, something was starting to feel strange here.
"Say, Holly..."
"Mh?" The redhead ran her hands over his chest and shoulders.
"I know I'm technically not allowed to ask any questions about you girls and your... biological differences..."
Holly grinned. "Yup."
"...but could it be that being close to you somehow affects my biology too?"
"Sorry, can't tell you."
"It's kinda important to know for me," Mark continued. "I mean, you may be cool with being the next step in evolution, but no one asked me whether I was okay with, well, evolving."
"You're not evolving, silly," Holly chuckled. "That's not how it works. You're not going to turn into some mutant. Evolution means that your kids may be different from you. What are you thinking -- that fucking me somehow rewrites your DNA?"
Mark sighed. "All I'm thinking is that I could already fuck you again."
"Well," said Holly, "that's a thought I can get behind."
And with a smile, she mounted him.
***
The weekend passed quickly, and while Mark found his sexual stamina constantly increasing in Holly's presence, that seemed to be the only change in him. Neither did he feel any sort of nymphomaniac urges nor did his best buddy show signs of arousal when there was no or little reason to. And even in those cases, it didn't feel different than it had before.
The week that followed was nothing out of the ordinary for Mark. He continued his usual life, did his job, his workouts, pretty much what he would have done had he never met Tanya, or Stephanie, or Holly. He did as Holly had asked of him and stopped looking into Patricia Harland's affairs. He had a deal with these women, and he intended to keep it.
Eventually, Friday came, and Mark decided to pick up where he had left last weekend and return to the "safehouse". He hadn't seen Stephanie in two weeks now, and he was starting to wonder how she looked, pregnant with his kid in what had to be somewhere between the fourth and fifth month now, speaking in regular terms. Tanya would definitely have had his child by now, and even though Mark knew he couldn't demand to see the baby, he sure hoped Tanya would allow it.
Fueled by this hope, he took his car and headed back to the mansion in the woods right after work. It was just as easy to find as it had been the last time, and though it was already dark when he arrived, he found the place well-illuminated. This time, he took his car right before the "safehouse" and parked it there.
As he locked his car and started walking up the stairs and towards the entrance, the door opened, and a young woman stepped out. She was almost as tall as Stephanie at first glance, but much more slender, almost willowy, with straight hair down to her hips that looked some shade of brown in what little light fell on her. The combination of sleeveless blouse and form-fitting skirt looked incredibly elegant of her, and she reminded Mark of some fashion model.
"Good evening, Mark." the woman said. "You are Mark, right?"
Mark nodded. "I am. I don't think we've been introduced?"
To his surprise, a hint of a smile played around the woman's lips. "No. No, we haven't. I'm Mona. Please, come in."
She stepped to the side, and Mark walked into the mansion. Even though he had been here before, the dimensions of everything still impressed him. Mona led him through he antechamber into the parlor he already knew and pointed him towards the armchairs he already knew. "Please, take a seat," she said. "Do you want something to drink?"
"Yeah, a soda would be nice," Mark replied. "Are Tanya and Stephanie here?"
"Tanya's not here," Mona said, walking towards a cupboard and rummaging through it. "But aunt Steph is. In fact, she's the reason I'm here too. Gotta help her out in the next few weeks. Her baby's yours, right?"
Mark nodded, though he wasn't sure whether this was a good topic to discuss with someone he had just met, family or not. "Can I see her?" he asked. "She's the reason I'm back here."
"Sure, I'll ask her." Mona approached Mark and handed him a bottle of soda and a bottle opener. "Just a minute."
