Yes and the princess is definitely NOT repressing an insane lust-beast inside herself

As the pleasant evening goes on, your "personality" starts getting a funny feeling, like something isn't right, but ignores it because he's trying to woo what he considers a done deal.

You have been stealing glances at her all evening, despite her prudish demeanor, you could tell that she had a pretty decent body underneath all that fabric. And the rumors were that her family were kind of **** to marry her off as most of her potential suitors ran away, disappearing, after spending a few days with this tall shy woman, who the meaner people called the "ogre princess" due to her size, but you don't see it, you just see a tall beautiful woman, and her dowry doesn't hurt, all in all the perfect wife material in your book.

You look back at the princess, and realize that she's acting a little less shy now, has been gradually as the evening went on, you thought it was because she was letting her guard down but you realize it's not that, it's something else, something unnerving and dangerous.

Your character thinks about how she's been eyeing you, even during the dance, how you start realizing her eye's haven't really been matching her demeanor, it's more like... You aren't sure, until you remember feeding some friendly dogs, who's whole body language was nothing but friendliness, but their eye's were locked on the food in the same way the princess has been looking at you.

An alarm goes off in your head, you give the princess an unnerved look and say:

"Such a nice evening, but I simply must go."

You stand up, walk past the sitting princess and notice that the double doors leading inside the room aren't there anymore, just rows of bookcases that seem to be a little more deprecated now.

"No." the princess says, causing you to turn and look at her, she has risen from her seat, her large size casting a slowly creeping shadow over you, larger than the dimming light in the room should be able to.

She looks down at you and says with menace:

"You can't leave until I have had my taste of you."

You see her body language is totally changed, no longer a hint of the shy princess before, but something powerful, confident and hungry, very hungry.

"T-Taste of me." you say nervously.

"Yes, I caught a whiff of you during the dance and could barely contain myself, had to hide behind a fan as I more or less drooled at the thought of you." Jane says with a voice resonating with dominance.

She starts walking over to you, while the whole room weirdly shakes, rumbles and throbs, her dress slowly changing, like it's morphing, from something frilly to something dark and shiny and she's growing slightly in size as her body expands a little.

She eye's you like a savory piece of meat, even drooling, this gets a little too much for you so you raise your hands and form a T with them and say:

"Time out!"

But Jane just keeps marching as she smiles showing her teeth, you get more nervous which seems to excite her, then you remember and think and say out loud:

"Yellow light!"

Jane stops in her tracks and her whole demeanor changes, going from some kind of hungry beast to a friendly but worried girlfriend in an instance. She gives you a look and asks:

"Are you alright honey, we can try another fantasy if this is to much."

"No, maybe, are you going to like... eat me?" you ask with nervous puzzlement.

Jane gives you a weird look and says:

"Erh, no that wasn't the plan... but if you are into that kind of thing I can make some adjustments."

You give her a shocked look and say:

"No, definitely not!"

You see her weird look morph into an amused smirk, and realize she's messing with you a little bit, you give her a frown and then ask her:

"I would like to know more what this all is, so far I have been getting a slight horror vibe from all this."

"I'm just raising your heartbeat a little, makes, ahem, the playtime that's coming up that more fun." Jane says.

"Ok, but what are you exactly playing as?" you ask curious.

"Well, my character is part vampire, part succubus, part witch, part wizard, part demon, part angel, part elf, part human, part amazon and is a mix of barbarian, fighter, wizard, warlock and sorcerer class and..."

You interrupt Jane and say in an amused voice:

"Wait, class! Is this some kind of nerdy dungeons and dragons thing?"

Jane seeing your slight smirk gives you a slightly annoyed look, pauses for a second and then says in a slightly defeated tone:

"...Yes, fine, I mainly use this pocket dimension to play out a kind of self running story, where I'm a cute princess that is secretly an adventurer. But I got kind of bored of it, doing it alone that is, and really want someone to play along with."

"Aw, you are letting me into your nerd hobby." you say with slightly more sincerity than you meant to.

"Har, har, look, we can do something else if you want and..." Jane says giving you a pout.

"Maybe, can you just give me a slight hint what this is all about, because you are acting more like a monster than an adventurer, give me some context so I can decide."

"So, my character is essentially recruiting herself a sidekick, through sexual domination, because, well if we continue my character will explain... So do you want to continue or do something else? And if you do continue, can you please let your 'character' take over for the rest of it? It will be so much more fun if you do, please!" Jane says with a dorky excitement.