Lesse if I have it figured out.
Allure: Only used for the merits adorable and big eyes
Gossip: Rumour gathering
Manipulative: Making people do what you want them to do
Sweet talk: Seduce/befriend
Vamp/Pose: Appearance, being a slut
Force:Default Fighting ability and resistance to being restrained. Your force also acts as a duration of rounds between attempts to escape from you.
Athletics: Tons of stuff, all physical in nature.
Endure: How long you can sustain sex, willpower, how quickly you recover from anything
Restrain: Physical stuff that is done to other people, and bondage
Size: How heavy and bulky you are to push around, every point of size also improves your figure.
Study: How smart/knowledgeable you are, used to prove people wrong or see through lies.
Investigate: Learn stuff that is not secret/rumour or perform experiments
Machines:Learn how to program the VCR or use some other device you've never seen before, build/repair/operate stuff.
Occult:Learn about magic and demons and stuff. If you have the magic merit, allows you to cast spells too.
Subject: Get bonuses to other abilities by studying beforehand, complete your homework in a rush after wasting? most of the night fucking, do well on tests
Threat: Not submitting to people
Chastise: Ordering people around, Discipline/Training
Dirty Talk: Insulting people, humiliating people, talking like a slut
Wealth: Ability to obtain money
Elusive: Only used to resist the levitate spell
Sneak: Getting past people
Infiltrate: Getting past security
Subterfuge: Hiding things
Slip Away: Escaping using the environment instead of just fleeing all out with athletics
Also, you can use negative fetish to make you more resistant to being dominated if your threat is only average.
As for your goal, you really weren't that far off although you need to flesh out your magic more. A high gossip ability would be needed, as well as sweet talk/influence(or both). You'd likely want above average threat(3 or more). House Saturn works too, no problem there. Your concept doesn't seem to touch on the sexual side of the character at all though, and what would you need "a ready supply of writhing flesh" for exactly? Other than creatures summoned up, Jupiter doesn't exactly have that in abundance either.