While Lunisa is surprised, Alros watched the entire process with a smirk on his face.
"Oh, you poor Spirit. This is just the beginning," what better torture, to one who began to indulge themselves in carnal pleasure, than to force them to abstain, or stopping them from reaching the peak they wish for.
That is why he put all of his monsters that have aphrodisiac properties on them, along with creating flowers with his magic. The flower itself is called Lust Pollen Flower, constantly releasing pollen that is similar to aphrodisiac in nature.
The egg vibrator is the final piece of the puzzle, one in his plan to torment the Spirit. He also imbued it with his magic, though it only allowed it to be remote controlled by one of his clones.