Hide.

"Is there any record of what we just did?", Jace said, making a gesture that encompassed both his massive genitals and Lily, who was gently snoring under a womb filled with decaliters of cum. "Also, why isn't she...leaking?"

"No record, and we also removed the record from the hidden cameras MES has in all the showers." Jace grunted at the confirmation of suspicions he'd had.

"As for Lily, you don't want her to, but more importantly the changes TC caused in women mean their bodies and nanotech sense any fertile semen and automatically strengthen the vagina muscles to make sure it can't get away. The effect scales with the strength of the semen, and with the changes that have taken place in you, yours is the strongest to have ever existed. It's kinda silly how strong actually, I mean right now, if a woman slips and falls on a drop of it, they're liable to get pregnant. It'll crawl up their damned leg if it has to."

"Well, I don't know if I want THAT to happen. Lets dial it back so it'll only get woman who are penetrated vaginally by me pregnant. Otherwise the orgy's I'm bound to have will mean a woman I never got to have sex with will have my kids.".

"Done", said the voice of the swarm.

Jace flinched a little. It was going to take time to get comfortable with this.

Jace stood there for a few minutes. The germ of a plan was starting to form in his mind, and based on the mental chuckle he heard from Ecaj, it had promise.

"Ok, I want the following: First, return my appearance to the one Lily saw before my cock grew just now. If there is extra mass as a result, use it to make my testicles larger and able to produce and store more sperm in a denser way, increasing the volume of my ejaculations to 11th place on the volume listings. If there's any left after that, use it to increase the density and strength of my existing bones and muscles, to a limit just beyond the highest any human bones or muscles have ever been. If there's any left after THAT, use it to improve my overall mental capacity and intelligence. Will there be any after that?"

"No. In fact there isn't enough mass left to do any but the first and a bit of the second."

Jace's cock returned to the slightly enlarged size it'd had before his fantasy ran away with him, although his testicles were now at least 3 times the size they'd been. MUCH smaller than the insane things he'd just been sporting though, yet somehow heavier than they should be. He also felt slightly stronger, but not to a noticeable degree.

"Ok, now, using as a base the nanotech mod MES recently installed in my nanotech, change it's code so that it appears to be combining with/reacting to some previously undiscovered coding in the existing base nanotech. Have it do the following as a result, but in such a way that while the staff will see indications about what it will end up doing, they won't want to risk trying to improve upon it, yet at least:

1. Slowly increase the size and capability of my genitals, including cock length, cock width/circumference, testicle size, and fertility. The upper limit will be a cock at least as big as that which Lily just enjoyed, with testicles capable of storing and producing at least as much semen, in a system that compresses it to fit in a much smaller space than it takes up after ejaculation. Refill in 15-30 minutes if sufficient food/water is consumed. Faster recovery time if sexual activity continues while refill occurs. If ejaculation does not occur for 3 hours, testicles will begin expanding in size slowly, to a maximum of at least 250% of that which I just experienced, with equivalent increases in stored volume.
2. Slowly increase my muscle mass, overall fitness, and stamina. Also the density and efficiency of my muscles and other organs. The upper limit will result in a body that is as close as possible to being sexually attractive to the majority of females in appearance, but with muscles and reaction times 250% of what that form would have in a normal human. Stamina, especially sexual, which will allow sexual activity at a nigh-constant rate, barring sleeping, eating, and waste removal. Once these changes are complete, this new body will only require 4 hours of sleep per day, even if it's separated into smaller pieces, and with a small but increasing loss of capability, will be able to stay awake without rest for an entire week.
3. Slowly improve mental capability, to an upper limit which will reach 150% of the best current human mind.

All those changes will occur at a rate dictated by a combination of the following:

1. How much food/water is consumed balanced by how much exercise is done do - more of both = faster, lower of one but higher of the other = very slow improvement, less of both = no change.
2. How much sex I have with actual people, more = faster, less = slower.
3. How many sexual partners I have, more = faster, less = slower.
4. How many women I impregnate - each one will cause a burst of improvement, equal to two days at normal rate, based on other parameters. This burst will occur over a period of 30-60 minutes, faster if sexual activity continues during.

Do not apply these changes until after I've dealt with the current Lily situation."

"Changes are ready, Jace", said Ecaj

"That was fast..."

"We are many", said the nanotech.

"......."

"Right. Lily." Jace gazed fondly upon the beautiful woman, his now far more "normal" (for now) cock rising in partial salute. "Can we alter her memory?"

"Yes, but it has to be relatively close to the truth, or even with your control over the nanotech, her mind will reject the changes."

"Sooooo..." Jace pondered the situation for a bit.

"Can we:
Alter her memory so she remembers me donning the VR headset, then turning around and generally acting as I did, but with only my current slightly increased cock size. Have her remember a far more than normal ejaculation volume, which DID inflate her slightly, and then the feeling of my cock growing inside her suddenly. She didn't feel nearly as much pleasure, but enough that she did pass out at the feeling of so much real cum inside her (as opposed to her dildo).
Remove the majority of cum from inside her, turning it into extremely high-density and nutritious protein bars (Jace grimaced slightly)."

"This can be done."

Jace watched as it occurred before his eyes. Lily appeared to deflate, her nanotech-enhanced body recovering almost instantly from the stretching, apparently as this TC person had designed it to. A stack of protein bars constructed itself where the ones he'd eaten last night had been.

Jace went over and donned the VR headset again.

"Now apply the nanotech changes I put on hold."

"Done."

Jace's cock and balls grew noticeably as the recent activities were taken into account by the new software. He picked up the measuring tool Lily had dropped when he'd come up behind her.

Glancing down at his cock, he pondered it's almost-erect condition.

"Ah, one more thing. Give me complete control over my erections - default is natural response, but via conversation with Ecaj, give me the ability to rapidly become erect, or to turn off the natural response, and everything in between."

"Done"

Jace conversed with Ecaj for a bit, then thought "0%" at him.

Jace's cock deflated to an unaroused state. He grinned crookedly to himself, then measured things.

Cock size flaccid: Length 6.59 inches, width 1.85 inches.

"100%." More measuring.

Cock size erect: Length 8.61 inches, width 2.57 inches.

"Excellent."

"Ok, I'm going to lay down on the floor, as if I lost consciousness after ejaculation."

He did so. "Ah, before I forget, Ecaj, 0%, and resume natural response." His cock deflated again.

"Now, cause Lily to wake up in 15 seconds."