While you are shopping around, Brooke comes up from behind you and taps you on the back to get your attention. In her hand is her latest find. A "pussy portal", according to the box. What it essentially looks to be is just a simple ring insert meant for use durring sex or something along those lines.
"That's different. What's so special about it?" You ask while showing only a mild amount of interest. You're far more interested in looking at another object right now, but don't want to blow off your girlfriend either.
"Apparently it creates a portal that things can enter and exit out of" explains Brooke.
"Well, I mean that is kind of what the box hints towards with the name and all. Why do you want it though?"
"No reason in particular, I just found it to be interesting and all. Plus it is only 10$."
You shrug after hearing the low price. "Get it if you want. We at least can afford a few extra $10 purchases here and there haha."
Brooke smiles and heads immediately to the register while you go back to that interesting item that you already know you can't afford, but looks really cool. Minutes later, Brooke comes back with a huge grin and pulls you towards the back of the store. Then after quickly checking around, pulls you into the bathroom with her and drops her short shorts for you.
You raise an eyebrow at your girlfriend's willingness to forego underwear, but then notice that her pussy is widely gaping around the insert. Funny enough, the insert is actually of a fake pussy, kind of like what you would find on a flashlight. You squat down to get a closer look and give it a poke.
Immediately you get sucked inside and find yourself inside of an empty cube. It is bright inside, and all 6 walls are white. The only thing besides you inside is a small circular opening through which you can hear and see through. It shows basically a bird's-eye view of the bathroom floor, except only from Brooke's crotch.
You look around the space once again and then feel a pinch on your stomach. Looking down, you find a fleshy colored cord has attached itself to your bellybutton and is anchored into the floor. You tug at it and feel it hurt so you stop. Apparently Brooke also felt it as she groans as well. You tap the circular portal opening again and appear back inside the bathroom, only with Brooke now panting heavily. The cord attached to you pops off, then snakes its way back inside the portal.
"Woah, that's pretty cool! It's like a personal storage room!" You say excitedly. Brooke however is not as happy and pulls out the insert right away.
"Fuck that. I am not wearing that. Do you have any idea how disturbing that felt? I just felt my boyfriend become attached to me. Literally. I basically just gave birth to you." Brooke washes up then hands you the insert and steps out of the bathroom. You pocket the insert and wait a few seconds before also leaving the bathroom.
On the way home, you notice your crotch is feeling a bit uncomfortable but shark it off and just ignore it. But upon getting home, you are throughly uncomfortable and go to the bathroom. It isn't that it actually feels uncomfortable, but more that you just have no idea what is making you feel like this. You pull down your pants and gasp. Right beneath your balls is a perfect, yet fake looking pussy. But as fake as it looks, it feels extremely real to you. You can feel it all, even the inside. It feels like you actually now have a real pussy, womb, and everything.
You are not sure how the pussy portal got there, or how it is now attached to you, but you really find it cool, so you leave it in for now. But, you do toss in a roll of toilet paper just to test. You actually feel it inside your pussy, but only as if it is a very small version of itself. "Oh, so this is what she meant..." You mutter, now understanding that Brooke could feel you inside her pussy, moving around and everything. Honestly, you kind if like the novelty of this a lot. You really don't get how something so useful could make her so quick to hate it.
You remove the toilet paper roll from your pussy portal and note that it feels really good to do so. Like the relief you feel after you take a really satisfying dump, only even better somehow.
You pull up your pants again, and the uncomfortableness returns. You think about why it happens only when you put on pants and wonder if it needs to be exposed all the time? But that's not happening. You notice a pair of your girlfriend's panties on the floor. They are clean, but apparently fell out of the basket without her noticing. You shrug and put them on, just to see if that feels any better and it definitely does. You put two and two together and figure out that your men's underwear isn't all that comfortable when rubbing against the pussy portal. Makes sense as it looks to be made for women to use. You keep the panties on and put your own underwear in the laundry chute before feeling the need to pee.
Your in the bathroom already, so might as well do what you normally do in one. So you lift the lid, drop your newly acquired panties and take aim. Only to have your stream become half as powerful, and a sudden leaking feeling run down your inner legs. The pussy is fully functional. You can pee out of it too! You quickly sit down and do a test by pinching your dick closed. The flow of pee doubles from your pussy. You release your dick, the flow halves as some of it begins flowing out from your dick again.
You repeat this for the rest of your pee as it kind of is entertaining to do. Then you wipe up, but the paper gets sucked inside the portal. You pull it out and drop it in the toilet after finishing wiping off your inner legs. Thankfully you had stopped quick enough, so the panties were still perfectly dry. You pull up your pants, wash your hands, then exit the bathroom.
Brooke is still moping on the couch, so you sit down next to her and comfort her. She mostly is only frustrated by having "wasted" 10$. But because she is still this upset, you don't tell her that you are actually using it right now so as to not ruin her mood further. You both end up eventually going to bed after having binge watched a show she likes in order to cheer her up.