No one in particular, but there's plenty of options

Aiden watched as people fled in every direction, trying to escape his sex-crazed horde and the virus they carried. He started picking through the crowd for his next victim when he felt a strong pull from the infection in his veins. It felt alive, encouraged by its expanding reach. Aiden could sense it driving the rest of the horde into a frenzy, as well as a steady pull on his own psyche. I was encouraging him to let go and have some fun, to become one of the horde.

Deciding he had done enough plotting and scheming, Aiden allowed himself to be pulled into the rush and flow of the virus, abandoning his rationale in favor of a good fuck. Suddenly ravenous for sex, he shifted into a lupine form and rushed a crowd of fleeing people, tackling the first woman he saw and sliding his aching cock into her cunt, immediately shooting her full of potent jizz. She bucked and thrashed under him, first to escape, then to get more of his dick as she became rewired for sex.

Aiden continued like that for hours, shifting his form any time he got bored. He fucked, licked, sucked, rutted, and came in every way he could imagine. He transformed countless people into sex machines, each one a little different but all of them surrendering to the virus. They changed into all manner of forms, from the normal enhanced to ridiculously overblown proportions, creatures out of fantasy, science fiction, and horror movies, sentient plants and brainless cum dispensers. He saw no shortage of lakes of cum, marking either an orgy or a few very enthusiastic individuals.

One of his favorites was one woman that grew into some sort of mushroom person, spores pouring from her mouth and transformed nipples. A huge wave of her spores had rolled over a fleeing group, making them all fall to the ground and start writhing with overwhelming horniness. They had their desires quickly quenched by a growing legion of infected that were all too happy to have someone to fuck. He also spotted a few demons flitting around, preying on lone individuals to seduce and transform, as well as one of his parasite-filled trojans. She was standing in front of a store, frozen in ecstacy as worms crawled out of her and squirmed under the barricaded door, eager to infect the people that had trapped themselves inside.

Eventually, Aiden came back to himself, reigning in his rampant lust and desire. He shook his head a little, slightly disoriented from his descent into horny fervor. The first thing he did was probe the horde and was delighted to find that it had grown massively, spreading through the city like wildfire. Few places in the city proper weren't populated with at least a few infected, with the growing horde quickly expanding into the surrounding areas. He was sure that a military response was inevitable, but with every person that abandoned themselves to the virus, the less worried he was. The infected were tough to begin with, and likely wouldn't go down with just a few bullets. And even if worst came to worst, he himself was practically invincible. If the need came, he could escape the city and start again in another place.

Momentarily satisfied, Aiden considered his next move. He could vaguely sense Vivian, Grace, Lilith, and Kaitlyn somewhat nearby, busy riding or sucking on various cocks. He knew that if he called them, they'd be at his side in minutes, **** to pleasure him. There was also the outliers at the college that he had sensed earlier, which still piqued his interest. Or he could always continue to spread the virus, either the normal way or he could play around with some less conventional methods of infection. So many choices and so little time.