Time to experiment.

Reluctantly, you lift Milah off of you, already missing the feeling of being inside her, and gently place her on the table. Cum spills out of her pussy, and splatters all over the floor. You look around and see everyone asleep, you suspect it is to do with the necklace's sexual energy being too much for normal people to handle, of course you as a half-incubus would be fine.

With everyone being asleep, you realise that now is the perfect time to experiment with the necklace. First, you attempt to specifically target your muscles with the necklace, and can instantly feel your muscles gaining definition while your fat melts away. Then you attempt to change your nature, and feel your incubus side start to flare up. After an hour of practice, you feel confident in changing your body and nature and can manipulate them at will.

However, Milah and everyone else is still asleep. In an attempt to wake them up, you gather the sexual energy and store it in the necklace. People slowly start to stir and wake up with smiles on their face and an after-sex glow of satisfaction. Cum leaks out of pussies and paints women's faces, boobs, and butts white.

With a few words, you clean up the Royal Lab and everyone inside it. People go to back to work, unsure about the chaotic orgy that just took place.