Elsa Snu-snu

"Elsa, are you sure this is safe?"

>Elsa doesn't even look up from her clipboard of calculations.
>"Of course, it's safe, Anon. I wouldn't have asked for your assistance if I knew this experiment was dangerous..."

"If it's not dangerous, why'd you strap me to the table?"

>"For safety, of course. Now, just give me a moment or two, and we'll be ready to begin."

>Elsa sets the clipboard down and walks over to a video camera set up to record her "experiment," whatever it may be.
>As always, she neglected to mention any details on her current project, which didn't help matters.
>Still, you found it hard to say no to a seven-foot tall flesh construct who could probably crush your head with her thighs.

>The camera lets out a short beep, and Elsa begins speaking.

>"This is test number four-three-two-seven of Serum X. Lab rat trials have been... mostly successful, so I've elected to move on to human testing. Are you ready, Anon?"

"Uh, as I'll ever be, I guess."

>"Wunderbar!"

>Elsa approaches the table and produces a small vial of a glowing green liquid.
>"I took the liberty of mixing the serum into some Ecto Cooler. Hopefully it improves the taste."

>Popping the top on the vial, she puts it to your lips and slowly tips the contents out.
>You drink, taking note of how it doesn't taste too different from normal Ecto Cooler.
>Maybe a bit more... electric?

>"Serum has been administered. Now we wait for observable effects before moving on."

"Uh, exactly what kind of observable effe-

>Your question is answered by a sudden tightening down below.
>You look down to find a rather obvious bulge in your pants.
>Your first instinct is to reach for it, but the restraints keep your arms by your sides.
>Still, you can't shake the sensation of a strong lust building within you.
>It's like with every passing second, your erection just becomes stiffer.

>Elsa scribbles something on her clipboard, a barely noticeable hint of pink in her cheeks.
>"Primary effect manifests much more quickly in human subjects. Must look into that. Anon, how are you feeling?"

"Uh... horny. Like, REALLY horny. Is that normal?"

>"Completely. Now we can begin phase two."

>Elsa hits a button on the console, and the table you're strapped to slowly tilts back until it's level.
>She approaches you again, removing her lab coat as she does.
>Underneath, she's as naked as the day she was... er... you get the idea.
>Despite being a stitched-up amalgamation of various corpses, she's got an excellent body.
>An impressive muscular physique, but still retaining the recognizable curves of femininity.
>Under any other circumstances, you'd be turned on.
>Actually, you're still pretty turned on, likely due to the serum.

"Elsa? Wh-what are you-"

>Elsa cuts you off by swinging a massive leg over the table and straddling your lap.
>Your clothed erection twitches from the sudden contact.

>"Just relax, Anon, this is all part of the experiment. Now, I'm going to start out slowly, but I will pick up speed and force over time. Just let me know if you need me to stop."

>She takes no time at all removing your pants and lining up your aching cock with her slick sex.
>You silently say a prayer as she eases down on your member.
>Your toes curl as your tip slowly spreads her apart.
>Every inch of her walls squeezes you for all you're worth as you penetrate her completely.
>Elsa takes a breath, face much pinker than before.

>"Good so far. Now, let's see if the serum's done its job."

>You don't even get a second to ask her what she means before she starts bouncing.
>She starts out gentle, like she said she would, but this tenderness only lasts about five minutes.
>Pretty soon, she's slamming herself down onto you with the force only a Franken like her could muster.
>The lab is filled with the echoes of your rough, rapid fucking, as well as the grunts and moans of Elsa as she rides.

>Surprisingly, the force of each impact on your pelvis doesn't really hurt.
>It is slightly uncomfortable, but this discomfort is buried deep under the intense pleasure you're experiencing.
>Ten minutes go by, then twenty.
>Then thirty.
>Then fifty.
>And she's still going.
>And you're still hard as ever.

>It's starting to dawn on you what the exact purpose of this 'Serum X' is.
>For someone as big as Elsa, it must be hard to get freaky with someone so much smaller than her.
>You can't help but feel sorry for all the poor souls who must've had their pelvises shattered thanks to her.
>Thankfully, it seems she's found a solution to that problem.
>You thank your lucky stars that the serum actually worked.
>Otherwise, who knows how long you'd have been laid up?

>Finally, after enough smashing to put Hulk to shame, Elsa eases off and puts her coat back on.
>"Hah... well, I'd consider that an overwhelming success, wouldn't you, Anon?"
>You're still catching your breath, so you simply give her a thumbs up.
>Elsa approaches the camera once more and stops the recording.
>"You've done an excellent job today, Anon. If it's alright with you, I may ask you for assistance with similar experiments in the future. Is that alright?"

"Uh, yeah, sure thing. Just... one condition."

>"Oh, of course. What is it?"

"Can... I have a copy of that tape?"