Try to calm her down - with facts and logic

Finn was taken aback even more, all of these revelations were big, but what really scared him was who they were coming from. Olivia was clearly not of sane mind, either right now, or in general anymore. Which in itself was dangerous, but given the powers she had made her truly a monster to deal with right now. Nothing greater than the fury of a scorned woman.

"Okay, I understand, but... don't get me wrong, but this is not really changing something then. As in, I am dating her. I am in..." he stopped himself of saying 'in love', figuring it would be a bad thing to remind the insane woman of this right now. "I am in a relationship with her for a while now, so if you are abusing her like this, how would you think that could turn me to be more interested in you?" Baby steps, but if he managed to get her to realize that her apparent goals - if he still was a goal for her at least - and her methods were contradicting, then maybe he had a way of changing said methods. Or at least to push her back enough so she rubs her back against the couch enough to ruin the text enough to remove her powers.

"Because I will be your girlfriend! You get the mightiest and best girlfriend in the world. And with the Marker, I can look however you want, I am gonna be the hottest girl you ever saw. But... she told me you two had fucked before with her as your ****. I am no ****, so I kept her for this! I can share you, if you want. She is gonna be your **** and I am your girlfriend, it's gonna be great." Yeah this was not going well. She clearly has lost her mind and went two bus stops deeper down in crazy town.

"You can have so much more fun with me as your girlfriend, and you can still fuck her all you want! Here, I am gonna show you!" She said and jumped up. Finn could not see Stacey, as she was facing away from him, but if she felt even closely to how he did then she was scared shitless of what was now to come.

"Listen, you really don't need to, let me just..." he tried to argue, but was cut off by a new order of Olivia.

"Finn, stand upright and strip naked, then stand still while getting an erection. I would give you a bigger one, Stacey told me you tried that with the Marker before, but I can't order you to change your body with my words, but..." she opened her hand and the Marker flew into it from somewhere in the back of the room, "I can just write on you then."

Reluctantly Finn obeyed. Obviously his **** was only internal, as his body seemingly had no interest on listening to his brain anymore and happily jumped up and took off one piece of clothes after another, ending naked and - as instructed - with a 6.5 inch erection.

"Now, how about this. Don't blame me but I am gonna be a bit egoistical on this one" She said as she leaned down, her bra clad breasts bouncing a bit as she wrote down right above his cock. Finn wanted to use this perfect opportunity to just smear his hand over her back, ruining her writings and freeing himself, but sadly he found himself frozen in place 'standing still'.

As he looked down he could not read it upside down, but he did not have to, as Olivia read out loud.

"Biggest and thickest cock that Olivia Hughes can pleasurably take."

And that was the last thing he heard, as he felt his head becoming dizzy, before his vision turned black and he fell down on the floor.