Eric noticed his son was anxiously pacing closer and closer to the plastic tube on the bathroom counter. "There's still six more minutes on the timer. And, besides, the box does not clearly indicate if this pregnancy test works for men who develop female reproductive organs as a result of a scientific mix-up."
Eric was just as eager to know as Josh, but his son's naked, eighteen year old body was pleasantly diverting his attention. From his messy-but-perfect bedhead, to his piercing brown eyes, nearly flawless tanned chest, and the perfect cock that bounced over two hefty balls with each step, Josh was a welcome distraction.
The timer on Eric's phone went off and he and his son rushed over to see two lines on the viewing window. Josh nearly shouted in delight and Eric was not sure whether to be shocked, excited, or terrified that his son had (probably?) gotten him pregnant. But Josh's joy was infectious and suddenly Eric was being picked up and covered with kisses.
Eric wrapped his legs around his son's waist as his arms draped over Josh's neck. As their lips pressed against each other, Eric felt his son's cock rising to it's full 8" beneath him.
Josh carried his father back to the bed, laying him down, spreading Eric's ass cheeks, and working his tongue in and around the pink hole. Eric greatly appreciated how Josh can come to love eating his father out. Soon he was moaning and pushing his ass further down, letting Josh's tongue get deeper and deeper.
"Oh son, I need that big cock in me now."
Josh was happy to oblige and slowly inched his throbbing erection into his dad's hole. The look on Eric's face as his shaft went deeper and deeper was worth taking it slow, even though Josh was tempted to wildly pound his dad's accommodating ass.
"Fuck dad. That ass is just as good as when I bred you the first time. Do you think that's when I knocked you up?"
Eric could only moan with pleasure in response.
Josh sped up as he remembered that first time weeks ago.
"I blasted so much cum up inside you."
Another moan from his dad.
"You ready for another load dad?"
"Fuck. Yes. Breed me again," Eric managed to get out as his own orgasm overtook him.
Josh's cock unleashed a torrent of cum inside his dad's hole, as both men collapsed.
"So, how do we know for sure?" Josh asked.
Eric knew he had a very awkward call to make.
***************************************
"Dr. Andrews speaking," Eric heard the voice come on the line after an annoyingly long wait.
"Hi Dr. Andrews it's Eric Smith."
"Hi Mr. Smith, is everything alright?"
"Well I had a question for you. Let's say I was curious and took a pregnancy test. Would it show positive just because of all the changes in my body? Or would it be like a regular pregnancy test? Or just not work?"
"Well the pregnancy hormones detected by the test aren't generated by the regenesis stem cells themselves, so I would not think there'd be any reason for a random positive pregnancy test, but... why are you asking?"
"Umm... "
"Mr. Smith if this is more than a hypothetical, you really need to tell me given all that's going on."
"It's... well... let's just say..."
"Yes, understood. Can you come by the clinic this afternoon? I have an availability at 3:30."
"Sure, I will see you then."
***************************************
Josh called off sick from his lifeguarding job and went with Eric to the appointment.
Dr. Andrews looked at the man and his son, "are you sure you want your son here for this? I admire your relationship but I have a few sensitive questions that will need to be asked."
Eric turned to his son and back to Dr. Andrews, "why don't you just ask your questions and if they get too sensitive I'll have Josh leave."
Dr. Andrews cocked an eyebrow but continued.
"So I take it from your call there has been an occasion where you had receptive anal penetration?"
"Yes, about 3-4 weeks ago."
"Right before I had the chance to warn you then," Dr. Andrews looked away guiltily.
"Well, I was fairly drunk at the time so it may not have mattered."
"Well you wouldn't be the first to pick up a stranger at the bar."
Eric just nodded silently.
"So no condom used?"
"No"
"Okay. So we may want to test for STIs."
Josh began to open his mouth but his father lightly nudged him.
"Have you noticed any new symptoms? What inspired the test?"
"Well, I had been nauseous the past few mornings. And my pants have been getting a little tighter."
"Got it. Well, we have some blood work to run to confirm but it's all consistent with pregnancy so I would not be surprised."
"But what does this mean, in terms of like... my dad being pregnant?" Josh couldn't help but ask.
"Well we were already dealing with plenty of unknowns to begin with and we've entered an even more uncharted area I'm afraid. My specialty is hormones and the like, so this really calls for an obstetrics specialist."
"I mean... I don't really know any doctor like that, except for the woman who delivered Josh?" Eric offered.
"I think I know the perfect person if you'll allow me to make a call. He's a brilliant doctor in my opinion and very familiar with my research so that will save some time on background."
"Oh, wonderful, and you know him well?" Eric asked.
"You might say I know him intimately," Dr. Andrews smiled. "He's my husband after all."
***************************************
Dr. Tyler asked them to come to his clinic around 5pm, when things would be a bit quieter and he'd have more time to spend going over Eric's situation than he would during a normal appointment.
Dr. Andrews had given his husband a brief recap from his office as Eric and Josh drove the short distance to the obstetrics clinic.
A very cute, young, male nurse greeted them and got them setup in Dr. Tyler's office. They heard the nurse giggle loudly at something said by different voice, Dr. Tyler's voice as they soon found out.
If Dr. Andrews was a muscled Adonis, his husband was a young Hercules. Beautiful, blonde, with a lean figure visible in his impractically tight plaid chinos and pale button down. His physical appeal was matched by an optimistic, friendly personality.
"Please, have a seat, I'm Dr. Tyler. You must be Mister Smith and the younger Mister Smith."
The doctor continued: "Daniel has filled me in on the situation, though I confess I take slight credit for the regenesis research since I planted the seed of the idea in his mind, so to speak. I do not have a deep understanding of the cellular operations of the treatment, but the good news is I know the parts well!"
Eric spoke first, "I have... many questions about this... situation... Dr. Tyler."
Dr. Tyler flashed a genuine, perfectly white smile in response: "almost definitely more questions than I have answers for at the moment I imagine."
As Josh listened in, Eric and Dr. Tyler went over some of the basics of pregnancy, how things might work, where there were unknowns (at almost every step), etc. Dr. Tyler turned to Josh afterwards, "any questions from you younger Mr. Smith?"
"Well I guess, when will we know for sure if we're... I mean... my dad's pregnant?"
"Reasonable question! Daniel... sorry, Dr. Andrews... has ordered the relevant blood tests to confirm. In the meantime, I will ask Jonathan to set up the ultrasound room so I can get a look at you."
Eric and Josh heard some vaguely flirtatious giggles as Dr. Tyler went out to give instructions to the nurse. They were guided into the ultrasound room where Eric disrobed down to his underwear, Josh staying despite Dr. Tyler suggesting he might want to leave.
"Jonathan, I think I'll handle this myself, you can finish up and head home," Dr. Tyler said as the nurse lingered by the door.
"You don't want me to stay in case I can offer you some... assistance... after they leave?"
"No, I'm all set, thank you," Dr. Tyler almost seemed to blush as Jonathan gave a slight pout and closed the door.
"Right, let's get this going," the doctor said as he squirted some gel onto the probe and began his exam.
After a few minutes he turned to Eric, "the uterus is fully developed that much is clear. And it's too early to quite see any development but I do believe there's a high chance there's an egg implanted. All signs point to pregnancy but we cannot say anything conclusively for another 2 weeks or so."
Eric saw his son beaming with pride, and he was emotional at Josh's response.
Eric got dressed and the doctor picked up the conversation: "As I'm sure you have heard many times already, there is much unknown here. If you are pregnant there is no guarantee the baby will fully develop or develop at all. Once we are able to clarify if there's a functional embryo, you of course have the option to continue the pregnancy or not, but the risks of continuing it are nothing to disregard."