The President’s wife of course.

The President calls and provides one additional condition, “Look pal, you get to fuck all these chicks, and it is going to be a lot of fun, but you have to do me a favor or I am going to pull the plug on this fucking thing.”

You start to answer but you are interrupted, “My wife has this fucking thing, and I don’t need it getting out that she is getting her treatments from her Secret Service detail.”

“Well sir, I can do that if you need me to,” you reply, and before you can continue, you are interrupted again.

“Good, she is flying to you now, you will meet her on her plane, alone. No recordings pal, no telling anyone about this.” The President said sharply, “You tell anyone and this disease won’t be your biggest problem.”

The truth was that while the President was an older man, his wife was a lot younger than him and she was pretty good looking.

Surprisingly a car arrives for you within minutes, and you are again driven to an airport. When you get there several secret service agents search you, scan you with a metal detector and some other sort of small scanner.

“Listen carefully doctor,” one of them says to you in a firm tone. “You will be alone, but two of us will be present and on the other side of a wall inside the aircraft.”

“Make any move to harm the First Lady, and you will face the full weight of the US government, prosecuted to the fullest possible extent of federal law, and sent to Guantanamo Bay as an enemy combatant.” He say this forcefully, you do not feel even a hint of dishonesty in him, “After we beat you within an inch of your life. No harm is to come to her, and you are never to tell anyone what happens here today.”

“Understood,” you reply casually, “mums the word.” You feel some jealousy coming from them, the men are probably the detail that service the First Lady every day. They probably don’t like the idea of her having any manner of a cure.

This time it isn’t Air Force one, but an unmarked military jet you see come in for a landing.

Two secret service agents and two US Marines come down the stairs and approach you, and the search and scanning are repeated. And then the warning is repeated.

One of the Marines looks at you with a fierce look, “Do anything we don’t like and we will drop you out of a plane in the middle of the Atlantic tied to a fucking artillery piece.”

Again, you detect absolutely no hint of that being a bluff.

“Guys, I am a doctor, and I kind of enjoy helping people and not going swimming in an ocean, you have nothing to worry about.” You reply.

“You wouldn’t be swimming asshole.” One of them replies sternly. Jesus what a serious group of people.

Soon you go up the stairs, and the First Lady is there waiting. She is older than you, almost fifty, but she is an attractive woman with a nice body.

There is a bed on the plane and she sits on it very properly, while the stairs are raised and the outer door for the jet is closed. The two on board agents move behind a wall, and you have the First Lady to yourself.

You turn to her, and she seems less proper now, you see desire in her eyes. “So you are the man with the cure?” She asks, unbuttoning a blouse that you think might cost as much as your most expensive piece of furniture.

She quickly removes her top and her bra, exposing very nice looking and full tits. You lean in and touch one, then lick and suck the other, and you hear her breathing hasten. You feel the want inside of her.

You suck her other breast, and then decide to steal a kiss, which she returns eagerly. She tastes really good. Up close you can see the tell tale signs of plastic surgery, seeing how she looks so good at her age. But she certainly isn’t ugly, not even close.

As you begin to take of your clothing you realize this might not work, she is close to fifty, she might not be able to have any more children. This would be a test for your genetically superior sperm. Your purported 100% batting average would be put to the test.

You glance over and see that the First Lady is laying back, naked, presenting herself to you, and you decide to skip the foreplay and get this done.

You can feel that she is horny, you have no idea what stage she is in, but you can tell that she is hungry. It seems to be putting her very proper demeanor to the test.

“You are a man indeed, look at that big fucking cock,” she said with a deep accent.

You line up between her legs and push yourself into her, and it is tight, she hasn’t had anyone your size in a while it seems. Her body eagerly accepts you however, and the holds you tightly with her arms, whispering some dirty things in your ear.

“Fuck me, fuck me with that big cock...”

It isn’t much, but you love it, having seen her on TV looking perfect and proper all of the time.

Given the odd circumstances, and the excitement at being inside of the President’s wife, you don’t last long. You orgasm within five minutes, not normal for you at all.

When your cum enters her body, she begins to spasm, “Oh my Jesus, of my fucking God,” She then becomes even less proper, and starts to shout in a different language, one you don’t recognize. The two secret service agents are on you in moments, one has a sidearm out.

She is ready for this, and responds before they can touch you.

“Get the fuck out of here you two morons!” She shouts at them, and they trip over each other getting back to where they are. She looks at you flushed, satisfied, and you feel that she is very horny.

You pull out of her and stand, and reach for your pants, but she grabs your cock, “Stay,” she says in a sexy accent. You look down and see a massive wedding ring on the hand holding your cock, she slowly strokes you.

“I did not fly all this way to fly back home after so little time, you will go again, and you will last longer.” She continues, in a the same sexy accent. “You will fuck me until I am finished.”

“Agents!” She said in a raised voice, again they are there in a moment. “You two, off of the fucking plane, leave us now!”

The pun in what she says is not lost on you, at this moment it is a fucking plane, you try to contain your smile.

They protest, but she gives them an icy glare and they leave, but they leave the door to the jet open and the stairs extended.

The First Lady surprises you by putting your messy and softening cock in her mouth, cleaning up both yours and her fluids. She smiles, “You taste good doctor.” She moves you to the bed and has you lay down, and moves between your legs and begins to suck your dick.

You have had remarkable rebound ability since you caught the new strain, and you feel yourself get hard again almost immediately.

She then works on your cock with her mouth ferociously, with the vigor of a woman half her age. She then moves on top of you, and lowers herself onto you in the cowgirl position, and begins to ride you hard.

You watch her body as she bounces up and down, her breasts are implants and bounce nicely, and she does work out, as her body looks really good.

You squeeze and grope her large breasts as they bounce, and soon you hear her orgasm again, this one not for your seed entering her. Fifteen or so minutes later you release another load of cum into her body, and she arches her back and moans in pleasurable agony.

You can sense how long it has been for her, a woman who hasn’t been satisfied in years. You didn’t last very long again, and she doesn’t seem ready to have you leave.

“Time for a third round doctor,” she said sternly. “You should be able to fuck me longer than a few short minutes. My piece of shit husband can fuck longer than this, are you not more of a man than he?”

She climbs off of you and starts to suck your cock, again softening, cleaning you of her cum and yours, before spending a few minutes sucking your balls. She is forceful as she does this, and then goes back to sucking your cock.

When you are hard again she works on your cock hard, taking some of you into her throat. Finally she takes it out of her mouth, smiles and turns away on all fours, presenting you her toned and shockingly beautiful ass.

“Take me doctor, fuck me doggy style, use my body as you would a common whore,” she says, far less proper in the passion of the moment.

You then guide your cock inside of her, and then grab her hips and start to pump your cock into her. First softly and then much harder, you really start giving it all for your country.

This time you last longer, and pound away on the First Lady, watching her toned ass shake as your pelvis pounds against her.

You don’t follow the time, but you last longer this time. When your release your seed in her again you again feel the waves or pleasure and orgasm rush over her.

For an older lady, married to a man you don’t much like, she is a pretty damn good fuck.

She slumps down below you, turns and gives you a deep kiss, a loving kiss. “Thank you my love, we may need future treatments, when I am in town. And I can be in town often.”

You relax for a few minutes, holding the President’s wife. You lay down on top of her from behind, savoring the moment.

Your softening cock is still inside of her, and you give her big round ass a gentle squeeze.

Soon an agent leans in, “Ma’am,” he says to her. “We need to get going, you are expected back in D.C. for the banquet tonight.”

She smiles at you warmly, “I must go to work, you should as well doctor,” she wiggles out from under you and begins to get dressed. “Thank you darling.” The First Lady gives you a deep French kiss, and right in front of the agents you grope her round ass and give a breast a quick grope.

“Are you sure we cannot wait a bit longer to lift off?” She asks the agents.

“I am afraid not ma’am, POTUS is expecting us, we need to get in the air soon.” One replies, you can feel his anger at you, yeah, this guy has been fucking her.

As you move away you hear her whisper to the agent, as your senses continue to get stronger, “don’t worry Chris, our private time together will continue.”

You get dressed, and as your feet leave the ladder, the agents and Marines are hurrying back up the ladder and you hear the jet engines whine. You are soon back in the car with the Secret Service, and soon back at your lab, with a final warning.

“Say nothing, ever to anyone.” One of them says angrily, “Take this to your grave, on your life doctor. Because if you tell anyone we will put you in a hole in the ground. That is not an idle threat.”

Later in the day your phone rings again, and it is the President. “Hey doc, thanks for that, when will we know if she is cured? She said you were great, the best, a perfect gentleman.”

“It isn’t really a cure Mr. President, we are still working on that, it only lasts as long as she carries my child sir, and for a bit after that.”

“Your child?” The President replies. Fuck, he wasn’t listening during the meetings. “You knocked up my wife?”

“Yes sir, that is how this temporary cure works, my offspring carry an immunity,” you reply, “and they can pass it on to their mother during the term of pregnancy.”

“We can work with that I guess, say we wanted one more kid,” He replied. “Play it off as mine, the public will love it.”

“But good job kid,” the President continues. “She hasn’t looked this happy in a while, I owe you one. Your lab will have anything it needs, you no longer have a fucking budget doc.”

You almost drop your phone, such a thing didn’t exist when working with a government. “Sir?”

“I am going to call this a matter of national security,” he replies. “You have a blank check, and access to anything you need, anything in the world, it doesn’t matter what it costs.”

Well there could be worse things than the President of the United States owing you a favor, and more resources for the lab would help.

“If my wife needs another treatment you can use the Lincoln bedroom, fuck man, you can use an aircraft carrier if you want we have like ten of them.” The President continues.

Eleven you think to yourself, there are eleven. But why should the fucking President know that? You almost laugh at the absurdity of it all.

You finish your day, make a donation of semen for the lab to use for treatment and head home for the day.

What a weird day this had been, what could it be like in the future. You lay down and hold your daughter, even two months along she shows no sign of pregnancy, her youthful body still as it has been.

Kira begins to play with your body, and you with hers. “Dad, Joy is getting lonely,” she says to you.

That was a surprise, after what you saw them do, you thought they might be very active sexually, just the two of them, “But what about you and her?” You ask.

“That was just a spur of the moment thing dad, I think it was me feeling your baby growing inside of her,” she replied. “And I wanted to comfort her. I am not really into girls, I haven’t thought about doing it since then.

You felt some disappointment, you had wanted to see that again, but none of you really knew what this disease really did, what was permanent, what was not, who knew?

“Ok darling, do you want me to do it?” You ask your daughter.

Kira frowns, “no daddy, it needs to be someone else, not you. You can be here for her, spend time with her, but she lives here.” She replies, “I don’t want you having sex with her anymore.”

Well that would be weird, but you would work on it.

“You are all mine daddy,” Kira continues, moving down to suck your dick. She looks up at you, “Only you daddy, I only want you for the rest of my life.”

Kira begins sucking your dick, and the weight of that statement is heavy on you. You didn’t mean for that, but it made you a very lucky man.

You and your daughter fuck for almost an hour, and you cum in her mouth the first time, as she says she has missed the taste. The second time you are fucking her gently missionary style, and when you send your seed deeply inside of you, you both enjoy the wild orgasm the new strain gives you, and you fall into a deep orgasmic sleep.