Stacey wants to be even more full

"Oh god. Babe. This is incredible! I'm SO Full! But I need more! Give me more!" Stacey Screams out.

Not sure what she means, you give your cock another twitch inside.

Her grip tightens momentarily and she lets out another moan. Suddenly, Stacey grabs your head with both hands, forcing your eyes to lock. A fiery look of passion and desperation shines through her pupils.

"Cock. More COCK. Make it bigger NOW!! Use the marker!"

You struggle for a minute. She wants more? It's already huge!

Just as you were about to clarify, Stacey roars "If you don't do it, then I'll just have to do it myself!"

Stacey leans over in a rush and grabs the marker from the side table. Uncapping the marker, she crunches over, looking down at your previously made upside down writing: "10 INCH PENIS"

She takes the marker and crosses out your writing. As the crossed line begins to dry, you can feel yourself shrink and the tightness fades. Stacey whimpers, but that's only momentary.

Stacey then begins to write something new, but you can't quite read it as she's writing it upside down—or right side up, depending on your point of view.

Stacey finally finishes and you begin to feel your cock grow. You wonder how big she went. It expands and expands. Soon the tightness of Stacey's pussy returns. It doesn't stop there. It keeps going and going.

"FUCK YESSSSS! MORE, MORE, MOOOORE!" Stacey screams on top of you. She drops the marker and stares up towards the ceiling. From this angle she looks crazed, as if she wasn't really there. The grip on your cock continues to tighten, almost becoming painful.

Looking down from the pure ecstasy on your girlfriend's face, you see that there is a noticeable bulge forming on her stomach. It's your cock becoming so large that her body is having trouble accommodating it. You begin to feel the head of your cock pressing against something hard.

Probably her cervix.

The tightness continues to grip you further until you hear an audible pop as your cock-head pushes through Stacey's cervix and shoots into her womb.

Stacey screams so loud it hurts your ears. Her eyes have rolled back and her mouth is gaped open.

"FUUUUUUUUUUUUUCCCKKK YESSSSSSS AHHHHHH!"

The scream continues but begins to fade as her breath runs out. She doesn't really appear to be all there, whether from pleasure or pain.

Finally you can feel your cock stop growing. The image before you defies biology. Maybe it was possible in a fucked-up hentai, but now it's your reality as well.

Your petite girlfriend's frame is completely impaled on your cock. You can't begin to guess how large she made it, but her entire torso is stretched around it, like a giant cylinder somehow got stuck inside her. It runs from her crotch all the way up to just below her breasts. Maybe 10 inches wide? If it wasn't for Stacey's Elastic and Indestructible writings, she would surely be dead by now.

Stacey herself was still seemingly ****, but her body twitched every few seconds. Just for fun you decide to flex your cock. It makes you slightly dizzy due to the huge size, but you manage to get one twitch off. Stacey's whole body expands with your twitch and shrinks, as if she took a gigantic breath.

Huh. Well, this might be a bit problematic. Should probably do something to fix this situation...