The fruits of experimentation.

With Jezebel's help he had amassed a following of over 20 demonette's, trying different techniques each time. He tried only feeding them cum (which took more exposures but ultimately made them more loyal and submissive), using Jezebel's magic to corrupt them (fun to watch, considering it required a lot of orgasms from both parties, but the resulting demonette's were devoted to Jezebel, not him), and even using other kinds of cum to convert fairies (this was difficult since the cum conveyed the psychic imprint that actually caused the fairy to change but he found he could still get what he wanted if he enlisted his demonette's to work their magic).

The results weren't always to his liking but his favorite "mistake" was converting Lilith. He'd used bull sperm, just to see what the effect an animal would have. At first the progression was much the same (confusion, lust, curves) but after the fourth exposure he noticed a certain...aggression that wasn't present in the others. The horns, size, and strength had manifested not long after along with a very peculiar effect: she grew a penis.

A bull-penis that retracted into a sheath and two massive (relatively) balls that hung between her legs. Jezebel actually fell off the table with laughter at his stupefied expression. He honestly had no idea why she reacted to the bull-semen this way and he didn't have the heart to try it on another fairy. Besides, one Lilith was more than enough.

At first he was horrified but he found that Lilith was particularly gifted at catching and breaking new recruits with her dominant personality, powerful magic, and sizable dick. A few rounds with Lilith was usually all it took to have a semi-obedient fairy, he didn't even have to corrupt them! This wasn't particularly useful for his long term goals (maybe they could be sleeper agents if released back into the populace?) but it pleased the demonette's to no end to have an untainted fairy sex-****.

So it ultimately payed off to have Lilith around. She was, however, a complete pain in the ass. Always rebelling, fighting his control at every corner, mouthing off to him in front of the others. He'd stopped letting her fuck the other demonette's after they started to follow her orders...and not his. It was hard to prevent "relations" between the ranks (particularly with Lilith), so he'd created the metal bikini's to keep things "professional" much to their disappointment. Lilith would have gotten a lot more flak for the change if she hadn't been so intimidating to the others. Next to Jezebel, she was the most powerful. He'd be more concerned about her subverting his control if she wasn't so easily manipulated by her lust and anger.

There were several occasions when she actively defied him and he snatched her out of the air and proceeded to spank her by flicking his finger against her backside. The other demonette's always enjoyed this, as did he, but what really surprised him was that so did Lilith. She didn't admit it of course but the wet spot on his hand didn't lie. He imagined this was why it kept working, since she was more than fast enough to avoid his movements despite her increased size.