Anyone who swallows your Cum–Magical Semen–Varies/Indifferent/Annoyed

[Anyone who swallows your Cum]

It can be a few drops or a full load. Precum doesn't count and it has to be fresh, licking it off a surface right after you cum or straight from the source. No storing it for later. You can ejaculate directly on someone's food or drink, but it has to be consumed quickly, within about fifteen minutes to be effective and it can't be too mixed up.

They don't have to be aware of it, but good luck getting someone to swallow enough unintentionally or unwillingly.

[Magical Semen]

Your semen is blessed or cursed with a great power: Anyone who swallows it is transformed into your sexual fantasy. They are not entirely overwritten, traces of their original being will remain, more if their fantasies align with yours. A preppy honors student or independent lawyer will be almost entirely erased if your fantasy is brainless bimbos –unless of course, they're into that– while a ditzy cheerleader might barely notice.

The same with almost any fantasy you might have. Want a slutty nurse? Hit up a hospital. A dommy mommy Librarian? Better get to reading! Be careful, though! People have more than one fantasy, things might interact in strange ways! That quiet nerd in the corner you tried to make a gamer girl out of? She might become an amazonian temptress instead if your fantasies align! Hold your intended fantasy in mind, it should minimize unwanted effects if you stay focused.

Also! Your power only works once per person, so whatever they turn into, they're stuck like that.

Obedience is likely but not guaranteed beyond sex. They'll always be willing to fuck you, but a slutty party girl might wander off for more fun and a dominant disciplinarian may start ordering you around instead!

Watch out for girls with...stranger...fantasies. That weird goth might want to drink more than your cum!

What's that? You don't want to warp the minds and bodies of your sexual partners? Really? Are you sure? Huh. Well, I guess it takes all kinds.

Just make sure they never drink your cum. Spitting it out is risky but should work in most cases. Cumming in other orifices is fine, they have to swallow it.

Better hope they never get curious, your cum will smell and taste delicious~

[Varied/Indifferent/Annoyed]

The reaction from your victims will depend on a complicated interaction between your fantasies and theirs. When you match well they will be positive about their change, eager to continue fucking. A mismatch will become thrilled to be your fantasy and act on it in unpredictable ways until they grow more of a personality again. Or they may understand that something has changed and be confused, horny and lost in their new reality. Nothing a good dicking won't fix!

Hmm? Oh right, witnesses! Well, an easy solution is to just have them drink your cum. If you're unwilling or unable to do so for some reason, not to worry. The effects of your semen ensure anyone who sees what you've done or doing will be completely indifferent to your actions. You can fuck your new robot sex **** right on the street and all you'll get is an eye roll or a dirty look for the noise.

Those who knew them well before you came along will be aware of what's happened, but will be unable to muster more than annoyance and mild frustration that their girlfriend/wife/sister/coworker is now your loyal catgirl maid. Some might even be curious and ask to swallow some cum as well!

I think that's everything, have fun!