Convincing the physics department

Silently, Rose got up from her seat, walked over to her office door, and locked it before turning around to rant at Tanya in a whispered hiss "What... Tanya, did you smuggle someone in here?" Tanya did not give an answer. Interpreting this the wrong way, Rose clasped her hand over her open mouth "Oh nono... don't tell me he is something that you bred in that lab of yours?"

Not really sure if he should be amused or angry, John took this moment to cut in "Let me assure you, I have not been bred in any kind of lab. I mean I have just been to her lab a few minutes ago, but, believe it or not, I simply walked in here from the street. I mean come on, there is someone sitting at the front desk, sure, but this is not exactly a high-security bank vault."

Rose opened her mouth several times just to close it again, seemingly unable to decide what she wanted to say about this. Tanya tried to calm her down "Rose, I know this is weird. Believe me, I was just as shocked when he showed up in here but... Well, there is more to it than that, you know? He has told me things, strange stuff. And I thought you may be able to help us figure it out." After a little pause, she added "Plus, he is a really nice guy, I think." John shrugged "I try" Rose looked back and forth between them and finally asked, "What strange things?"

Tanya did her best to briefly sum up all the things that John had told her about. How he mysteriously arrived here, How, for him, this world was very much not what he was used to, especially in terms of women and how they act towards him, and so on.

After Tanya was done, Rose raised her eyebrows "Come on... you expect me to believe, that all of this" she gestured to a whiteboard filled with complicated equations and diagrams "has suddenly become reality? All of this math I thought out over years and suddenly someone just came along and build a thing like that without even telling me? And that, of the basically infinite possibilities they found just that one universe where there is the one thing that we lack? Men that want to fuck us?"

"Well..." began Tanya, sounding unsure now herself "And let us for a second assume that would be true" Rose went on "Why the hell are there not more men walking around here then, huh? Why just him" Triumphantly Tanya responded "Nono, there is more! We know of at least one other guy, just like him." John, who felt like a useless observer up until this point, weighed in with "Uhm.. yeah his name is Steve." Just to add "Sorry, go on." as he saw both womens looks.

It was Tanyas turn now "But Rose come on. You know I am not some crazy person. And on the other hand, you have to admit: This would be a very very strange prank to pull on us, right? I mean why would he lie about it?"

"Why not?! Seriously, that is your argument? Come on are you a scientist, or what?" Rose said more heatedly now. "Oh yeah? Well what kind of scientist are you, if you do not take a look at the evidence in front of you!" Tanya gestured at John, who stood there, feeling like an idiot. But as they both kept arguing, John had an idea.

He took a step forward, between the two women and faced Rose "You know what I think? I think you might need some more concrete proof, some really convincing evidence." Rose glared at him "What are you talking about now?" John grinned and simply dropped his pants, exposing his half-hard cock in front of her. This caught her really off guard. it seemed "I.. But you see that does not... Come on I mean how would that make any difference in..."

But while the logically inclined part of her brain tried to reason, her limbic system had made her take off her own clothes already. Naked, she sat in her chair, looking up at John with big eyes. Her voice slightly quivered when she said "You do realize that none of this will convince me to... convince me to..." her eyes got stuck on his hardening cock every time she wanted to finish that sentence.

"Let's just see how you feel about this in a few minutes, huh?" John said, gave Tanya behind him a wink, and kissed Rose, putting one hand between her legs to start rubbing. Soon after, her chair squeaked quite a bit as John, standing in front of her, was thrusting inside of her, right between her spread legs over and over again while groping on her soft breasts.

Sometime later still, when she was hanging off of her desk, her body limp after orgasming heavily, Rose panted and asked "If I said I was not convinced yet, will you do that again?" The way she grinned back at him told John, that believing him or not, she was on their side now.