Polite and thankfull

You smile at her and say "that's ok and thanks for knocking i was getting a bit nervous about how aggressive she was being".

Still smiling the girl lookes you over before asking "would you like me to use the glory hole to let you thank me and give you a better experience or do you want to go somewhere else?"

You take a deep breath whilst quickly looking at her small bulge whilst thinking it over, she seems nice and it would be easier to give your first blow job on a smaller cock, looking back to her face you say "please go in i would like to try again."

The girl quickly goes into the cubicle next to yours and shuts the door whilst you go back into your cubicle and close the door before looking to the glory hole waiting for her to put her cock through, when she does you are suprised to see that her cock seems to be only 7 inches soft as most futanari are over 10 inches whilst soft.

You open your mouth and she quickly pushes her cock through. Tasting her piss on the head of her cock is odd but not unpleasant, as she begins to slowly slide her cock in and out of your mouth.

You can feel her cock start to slowly get bigger as she starts to become erect as you slowly swirl your tongue around the growing head of her cock, eventually you can feel the smooth skin of her shaft rubbing the inside of your mouth and throat as her cock rapidly grows.

As you continue sucking her cock you begin to wonder just how big she is going to get as her cock still seems to have a soft spongy quality to it like when a cock is flacid, her cock feels like it has doubled in lenght and girth since you started giving her a blow job and dosent seem like it will stop getting bigger any time soon.

The thought of how far this will grow makes you want to gag and cry at the same time, desperately sucking her as your mouth and throat begins to ache from the effort of taking her.

You soon hear her moan as she says "Ohh god your throat is so good i don't know how much longer i can hold back" as you wonder what she means you move you hands through the holes in the cubicle provided reaching for her testicles as you find them you are shocked to feel two massive basketball size testicles that rumble and throb as you squeeze them making her moan again.

You continue squeezing as she starts to grunt and breath hard, you feel her start to pour a huge amount of precum straight into your stomach as her cock gets large enough to enter your stomach you also notice her cock has finally stoped growing.

As you try to keep sucking her cock you realise you are stuck as her cock head is stuck in the entrance to your stomach, You begin to strugle to try to get her cock out when you hear her giggle and say "good boy your the first person to be able to take all of my cock in any of there holes" as she slowly starts to pull back her cock as much as possible before sliding back as she begins to fuck your throat, you can hear her moan each time she bottoms out with her huge cock.

As you suck her cock with her fucking your throat you keep massaging her massive testicles as they get bigger filling with more and more cum, soon you feel a large pulse go through her cock as she holds her cock as deep as it will go she crys out "i'm cumming"

As she cums you feel her cock expand as a huge amount of cum shoots up her shaft into your awaiting stomach.

You can feel each shot of cum as your stomach begins to bloat as you fill with cum, you can feel her testicles get smaller with each blast of cum

After almost five minuets of cumming she slowly stops cumming and as her cock softens she slides it out of your throat asking you "can you suck the last bit of cum from the tip" as the head of her cock reaches your mouth.

You suck hard on the tip before letting it fall from you mouth and droping onto the floor as you hold your huge stomach full of cum.

Sitting there unable to believe how big her cock got and how much she came you hear her door open and close before she knockes on you cubicle door asing if you are ok