When Aaron and Kristina woke the next morning, they fucked again, slow, and loving. He held her against him in a spoon position, fucking her wet cunt, enjoying the cushion of her Ass as he pushed into her. When they came, they lay there for a moment, breathing deeply in the summer heat, enjoying the drowsy morning feeling of his cock in her sticky cunt. He kissed her neck, and she snuggled into him, and sighed. “Jenn comes home today,” she said. “I don’t know how she’ll take this.”

“What do you mean?”

Kristina shook her head. “I can’t stay with her. The last few days…I’m so happy with you. Even now, I’m wondering how many more times I can make you cum before she gets back. I can’t give this up, Aaron.”

He nodded. He had avoided thinking too hard about the consequences, but they could no longer be ignored. He pulled her close, absently massaging her breasts. “Could we talk to her? Work out some sort of arrangement? I don’t want you to lose her.”

She shook her head. “I don’t want to lose her, either. But Jenn is a prude. And controlling. She gets mad if I even mention that someone is good looking. The idea of us opening our marriage, no matter how narrowly–she might divorce me on the spot.”

He shifted, feeling his cum inside of her, and a thought occurred to him. “What if we pretend it’s something else?”

“What do you mean?”

“You two were talking about having a child, right?”

“In theory. But artificial insemination was too expensive and… Oh.” She sat up, and looked at him, excited.

“See where I’m going with this?”

She started to smile, considering the idea. “That might work.”

“What do we need to do?”

She paused for a moment, thinking. “I can convince her you’d be a good donor. I don’t think there’s any reason to disqualify you. But, letting you fuck me… I don’t know, that’s might be too far for her.”

“What if we started small? Try and get her to agree that I’d be a good donor, and let her get used to the idea of me fucking you? Maybe if she feels like she’s in the way of a good thing she’ll acquiesce.”

Kristina nodded slowly. “That could work. She gets defensive if you bring something up too fast, but it is, honestly, a pretty logical option. If she has time to think about it she might come around.”

He was hardening at the idea. “If we put you on birth control we’ll can fuck for months before she figures out something is wrong. Maybe she’ll get comfortable with the idea, and we’ll be able to give up the ruse.” Kristina started gently stroking his cock. “Maybe…even more. When she sees how happy you make me, maybe we can convince her it’d make her happy, too.”

He smiled. “If you can keep yourself away from my cock long enough for her to try it.”

She looked intently into his eyes as she jerked his cock. “All I need is your cock, Aaron. But I know you need more than me. If I can convince the woman I Love to serve you, too, nothing would make me happier.”

He sighed, relaxing back onto the bed, and she bent down to suck his cock. “You deserve that happiness, Kristina. God knows you’ve earned it.”

She grunted in agreement and started rubbing his balls as she deepthroated him, and he closed his eyes, imagining what the future could bring.

*************************

Jenn came back to a house full of plans, and Kristina worked fast. Before long, he caught Jenn looking at him with an appraising eye, and she started asking “casual” questions about his health and family history.

Eventually, one morning they sat him down. Jenn’s angular face had a grim expression. Her blonde hair was pulled into a severe ponytail. Kristina was doing her best to hide her excitement.

“What’s up?” he asked, playing dumb.

“Well,” Kristina started, “we have a favor to ask.”

They explained they wanted children, but that sperm was expensive, and insemination more so. “We’re considering other options,” Kristina ended,

“Emphasis on *considering*,” Jenn threw in.

“Are you asking me to be a donor?”

Kristina nodded, and Jenn glared at her. “We’re asking if you’d think about it. Nothing’s decided. We just wanted to see if it was a possibility.”

He pretended to think. “This would be a…natural insemination?”

Jenn nodded curtly. “Yes.”

He looked at them, then said, slowly, “Which one of you would I be… impregnating?”

“Me!” Kristina put in, eyes bright.

He nodded, letting his gaze linger on her. “I think I would be willing. But are you two sure about this? I wouldn’t want this to come between you, or create any resentment.”

Jenn sighed. “I’m not sure. But I’m considering it. I don’t think you would do anything to hurt Kristina. And since we’re both lesbians, there’s no issue of feelings getting in the way. As long as you can remember this is purely for medical reasons, we won’t have any problems.”

He looked away. “I think I can try. I’ve lived this long with the both of you without anything unnatural happening.” He looked at Jenn. “But I can’t promise I won’t feel anything. Kristina’s beautiful, and, well, it is still Sex. I’d have to acknowledge how attractive she is to even get hard.”

Jenn sighed. “I can understand that. You are a man, I suppose. Just remember, she’s my Wife.”

I nodded. “I’ll be thinking about that the whole time.”

Jenn gave him a look, then stood up. “I think that’s all I wanted to ask for now. But I’d like to inspect you, physically. If we’re going to choose you, I’d like to make sure there’s no surprises.”

He shrugged. “Of course.”

Jenn snapped her fingers. “Let’s get this over with, then. Kristina, stay down here. Aaron, let’s go upstairs.” He shrugged, and started following Jenn up the stairs. He glanced back at Kristina, who blew him a kiss, then lifted up her shirt, flashing him her large breasts. He shook his head in amusement, then caught up with Jenn.

He idly checked her out as she walked up the stairs. She was the more masculine of the two, and had a body to match: petite, full of lean muscle, with breasts that were barely noticeable, and an Ass that was far more toned than it was sizable. Still, she moved with an athletic grace. They got to the guest bedroom, and she motioned him in, then closed the door.

“Take off your clothes.”

He raised an eyebrow. “At least make me dinner first.”

She sighed. “I’m inspecting you, remember? Can’t do that with all this fabric in the way.”

“Sure you’re not just trying to see me naked?”

She glared at him, and said nothing. Shrugging, he peeled his T-shirt off, showing off his muscles, then undid his pants, letting them fall to the floor. He slid his thumbs under the waistband of his boxers and looked questioningly at Jenn. “These, too?”

She paused, looking at his limp cock through the fabric, then shook her head. “No. Not interested in seeing your cock.”

He shrugged, and stood with his hands on his hips. “Well,” he said, “inspect away.”

She looked at him critically for a few moments, and he thought he heard her breathing quicken.

“Turn around,” she said, and he did, giving her a nice view of his back and legs.

“Alright,” she said, and he turned back to her, noticing that her face was a bit flushed.

“Like what you see?”

She bit her lip. “You’re in better shape than I thought. And your frame is really solid. Maybe this isn’t so crazy.” She stepped forward hesitantly, and reached out to touch his shoulders, pausing before she made contact. “May I?” she asked, looking up into his eyes. He nodded, and she put her hands on his shoulders, gently massaging the muscle there. He could feel her breath on his chest. “Yeah, you’ve definitely got nice muscles.”

She ran a finger through his chest hair, then followed the trail down to his belly button. “Your chest hair’s ideal, enough to be masculine, but not overwhelming.” She moved her hands over his stomach. “Nice abs.”

She paused again, then knelt down, running her hands up each leg until she got to his boxers. “And nice legs. That’ll be good, the kid will be able to bike with us.” He had been slowly hardening as she ran her hands over his body, and she looked up, surprised to see his cock tenting his underwear in front of her face. She paused for a second, looked up at him briefly, then, almost to herself, said, “Wow. Sizable cock, too. That’ll…get really deep. Which will get the sperm closer.”

She stared at it hanging in front of her face, then gently reached out and slowly ran the tip of her fingers along his length. “Fuck,” she whispered, holding her breath. “That’s even bigger than it looks.”

She looked up at him, struggling to revert back to her persona of mild disdain. “Frankly, I’m worried that your cock might be too big for my Wife. Kristina’s not good at saying no–she would probably still try to fuck you, even if your cock was too big for her to handle.” He struggled not to laugh as she turned her attention back to his dick, pushing the fabric of his boxers against it to try and get a better look. “Hm,” she muttered, wrapping her hand around it. “And then…” she put her palms on each side of his clothed dick, and ran her hands down his shaft, slowly, trying to gauge the length. She grabbed his clothed cock with her right hand, and absent-mindedly stroked it as she concentrated, a look of determination on her face.

Noticing what she was doing, she cleared her throat, and looked up at him. “It’s about seven inches long, right? And six around?”

He looked at her in amusement. “You could’ve just asked, you know.”

She rolled her eyes. “Like I’m going to believe a man’s answer to that.”

“Believe what you want,” he told her, “but I’m eight inches long, and about seven around.”

She shook her head. “I doubt that. That’s just unreasonable. I trust my number.”

He affected a look of sympathy, and shrugged. “Maybe the boxers got in the way?” he suggested.

She bobbled her head side to side, considering. “That’s possible.” She sighed, looking at his dick and biting her lip. “Guess I will have to see your cock today.” She put her hands on his waistband, then paused, looking up at him with a businesslike expression on her face. “May I?”

He nodded, trying hard not to laugh, and she slowly pulled his boxers down, letting out a little grunt of surprise as his cock sprang Free, bobbing in front of her face. She pushed his unkempt pubes back from his shaft, and got under his cock, looking up and down the full length. “Hm. That does look bigger without the boxers.”

“Told you.”

She ignored him, looking concerned and slightly flushed. “This really might be too big.”

“If it’s any consolation,” he told her, “most women are able to take it just fine. They enjoy it, even. I’m sure Kristina wouldn’t be any different.”

She sighed again. “Kristina’s better than the sorts of girls you bring home. Well, at least you don’t look like you’ve got any STDs. Little surprised by that.”

“I get tested pretty frequently.”

“Good. We’re going to need a clean one before–if you fuck Kristina.”

She had been staring at his cock the whole time, and she gently reached out and cupped his balls. “These are nice, too. Lots of testosterone. Lots of sperm production.”

She brought her other hand to his shaft, gently stroking it. “God, this is just so big…”

She trailed off, still stroking him and fondling his balls, staring at his cock. He cleared his throat, and she came to, taking her hands off his cock and standing up in a rush.

“Do I pass?” Her eyes were locked on his dick. “Jenn?”

She coughed, and looked him in the face, angrily. “Why do you want to do this, Aaron?”

He raised an eyebrow. “What do you mean?”

“Why are you so eager to ‘help?'”

“I… care about you two. I want to help Kristina get pregnant.”

She pursed her lips. “That’s it? Are you sure this isn’t some Fetish of yours? Sure you don’t just want to fill my Wife with cum while I watch? Take my woman from me?”

His dick twitched a little. “I’m not sure what you want me to say. I definitely don’t want to hurt either one of you.”

She was visibly angry. “Kristina, for some reason, really wants you to be our donor. She keeps talking about how perfect you would be. And I can’t come up with any reason to argue.” She crossed her arms. “Except that I don’t want you to fuck my Wife!”

He took a step back, a little nervous, and Jenn stepped forward and grabbed his cock. “So here’s what I’m going to offer you. Fuck me, once. Get your rocks off, have your fantasy. Tell all your friends you banged a lesbian. Then tell Kristina you’ve had second thoughts. Tell her you can’t go through with it.” He looked into her eyes, and saw anger masking nervousness. “What do you say?”

“Maybe,” he told her, glancing at her hand on his cock. “But I need to inspect you, first. Fair’s fair, right?” She hesitated for a second, then pulled off her sweater, revealing small tits sitting atop a flat, muscular stomach. He stepped forward. “God damn, Jenn. Why do you hide that body?.”

“I don’t feel the need to show off.”

He stepped forward and put his hands on her shoulders. She looked down, and he slowly moved down to her breasts, gently cupping them. “Hey!” she exclaimed.

“Your nipples are hard,” he told her, gently moving his thumbs over the engorged nubs.

“It’s cold in here,” she deadpanned back.

“And if I warm them up…?” He bent down, gently breathing on her small tits. She exhaled slowly, and he stuck his tongue out, and gently licked one.

She shuddered, then pushed him away. “That’s not an inspection. I think you’ve seen enough.”

“I still haven’t seen your lower half,” he told her.

She sighed. “Fine.” She pulled her jeans down, and stepped out of them. She had on gray, tight fitting panties that fully covered her Pussy and Ass. Still, he could see strands of blonde pubes poking out from behind the underwear.

“Turn around,” he told her, and she complied, showing a tight, muscular Ass, built from hours and hours on her bike. “Nice butt,” he told her.

She wiggled it slightly. “I know.”

“Take off your panties,” he told her, and he could tell she was grimacing. Eyes closed, she forced herself to bring her hands to her waist, and slowly pulled them down, inadvertently giving him an incredible look at her Ass and flushed, glistening Pussy.

He stepped forward, embracing her from behind, his cock nestled between her Ass cheeks, his pubes mingling with hers. “Hey!” She exclaimed, and stiffened.

“Just getting a sense of how well our bodies fit together,” he told her, and pulled her into him, reaching up to cup her breasts.

“What… what do you think?” She stammered out, warm body pressed close to his.

“I think I’m going to fuck you,” he whispered in her ear.

She wriggled out of his embrace, and turned to face him, surprised. “You’re going to pick me over Kristina?”

He nodded. “But, a few conditions. You have to do anything I ask. I’m not interested in fucking a dead fish.”

She rolled her eyes. “Fine. I’m not going to know what I’m doing, but I guess you’re probably going to be getting off on that, huh?”

He shrugged. “Second, we’re going to do this right now, while Kristina’s waiting downstairs.”

“Fine. I want to get this over with as quickly as possible.”

“Finally, I’m going to cum inside you.”

She shook her head. “Absolutely not. I’m not on birth control.”

“So get some plan B when we’re finished. Feel Free to refuse. I know Kristina would be happy to have me come inside her.”

She grimaced. “Fine. Asshole.”

“That’s it, then,” he said, stepped forward, and kissed her.

There was resistance, initially. Or maybe just surprise. But as he kissed her, she relaxed, gradually, and began to kiss him back. He put his hand around her waist and pulled her against him, her body warm, nipples hard. She had her arms down at her sides, still, but when he moved his other hand up to her face and stroked her cheek, she tentatively moved her hands to his arms, feeling the muscle there. He grabbed her Ass, and she moaned into his mouth.

“Someone’s enjoying this…” he muttered.

“I’m imagining you’re Kristina,” she muttered back.

“Kristina grabbing your Ass with her muscular arms? Kristina’s stubble on your face? Kristina’s thick cock pressed against your stomach?”

“Yes,” she answered, defiant.

“Then I want you to get on your knees and imagine you’re sucking Kristina’s dick. Don’t worry about your inexperience. She’s very understanding.”

Jenn scowled, and dropped to her knees. She looked at his cock apprehensively, then back to him. “Your dick is too big. I can’t fit this in my mouth.”

“Try. Plenty of women have before.”

“Whores, I’m sure.”

“Don’t be vulgar. I knew a happily married woman who taught herself how to deep throat my cock in a day.”

“She must’ve been a filthy slut.”

He suppressed laughter. “She was. She was good at hiding it, though.”

“I’m not a slut.”

“But you’re filthy?”

“Ugh. I do feel disgusting being this close to your dick.”

“Well, you’d better hurry up then. It’s going to be there until you make me cum.”

She looked at his cock again. Grabbing it gingerly, she moved it a bit, calculating, then slowly started stroking the shaft. He grimaced. Her grip was too tight. She was yanking him like she was trying to pull it off. But, her amateur squeezing coaxed a drop of pre from the tip, and, noticing it, she smirked at him. “About to cum already?”

He burst out laughing. “Jenn, I think I got better handjobs in high school. You’re clearly a very devoted lesbian.”

She reacted with a mixture of outrage and pride. “I am, asshole. This is the first cock I’ve ever touched..”

He shrugged. “Maybe you’ll be better at giving blowjobs.”

She grimaced, and brought his cock up to her mouth, gently taking the very tip in. He felt her tongue lap up the pre on his urethra. She took a deep breath, closed her eyes, then swallowed. She stayed there with her eyes closed, looking vulnerable, gently licking his urethra, the tip of his cock barely in her mouth.

“That’s not bad, Jenn,” he told her, and she pulled off, and made a face.

“I’m sure you Love it. I don’t care if I’m bad at it. That’s what you wanted, right? An inexperienced lesbian? Bet you think it’s Hot that that was the first time I’ve ever tasted cum.” She licked her lips unconsciously.

He raised his eyebrows. “How was it?”

She shrugged with affected apathy. “Fine. Tasted kind of like Kristina”

“You might be tasting her cunt,” he thought to himself, then tousled her hair. “See? This won’t be so bad. Maybe you’re not as much of a lesbian as you think.”

She rolled her eyes. “Right. I just Love the taste of your cum so much Aaron. It’s going to convert me.”

“That was fast.”

“I was joking, prick. Cocks are boring. I don’t understand how women enjoy this.”

“Well, they usually put the whole thing in their mouth.”

She gave him the finger, and wrapped her lips around his head, fully this time, taking his dick in until he felt himself pressed against the back of her throat. She paused there, eyes closed, as if taking in the sensation, then started moving back. She scraped her teeth along it on the first pass, and he grabbed her head, stopping her. “No teeth! Do I need to get someone in here to show you?” She grunted in anger, then started again, slower, her lips wrapped around her teeth awkwardly. Her anger became determination as she sucked him off, trying to move as fast as she could. But her motions were jerky, and her caution about scratching him again meant he hardly felt anything. Still, he enjoyed watching her bob intensely on his dick, her mouth distended. Occasionally she’d gag when she tried to take it too far, or cough on her spit when she paused for a second to catch her breath.

After a few more minutes, he stopped her.

“Ready to cum already?” she said with a smirk.

“Don’t flatter yourself,” he told her. “The novelty’s worn off. Get up.” She stood, and he moved close to her, gently running his cock head on her slit through the sopping mess of her blonde pubes. She put her head on his shoulders, and leaned into him, shaking. He rubbed her back. “Ready for your first cock?”