This is when the situation became even worse for the 3 of you. Maddy's addition overthrew the balance and tipped you both forwards as Allison no longer was able to keep her erection pointed upwards. This lead to Maddy nearly face planting the sidewalk. However at the last second she managed to brace herself with her hands.
With Alison standing behind you, and Maddy down on her hands in front of you, meant that you are now stuck horizontally aligned. You have to now precariously balance yourself so as to not roll over as neither your hands or feet can easily reach the floor now.
But then things get even worse. Maddy and Allison feel something inside of themselves link up. Because of this, Maddy no longer has any control over her arms, and Allison in in full control over them, but can only use them as if they were her legs.
The craziness only grew when your own legs seemingly melted away, somehow leaving behind a perfect pair of breasts in their place on your hips. All of your breasts quickly swelled up with milk as your nipples lengthened into teats. You also realize that you no longer are at risk of flipping over, and have essentially been turned into an udder with a pair of arms and a head.
Then Maddy begins moaning, as her body is forced to turn around, until she is on her back with her hands turned into feet and arms into legs. Her actual legs, like your own, have vanished, though she wasn't left with extra boobs. What she was left with was a pair of pussies, each of which was wide enough for you to fit your arm into, and deep enough to bury your arms all the way past your elbows too.
Something then happens with Maddy's main pussy as it widens and opens up into a permanent gape. You feel your arms be forced into Maddy's new pussies causing her to scream out in pleasure. Her main pussy floods with her juices, which fill it up to the brim.
You then feel compelled to drink. You lower your face down just above her pussy and begin lapping up her juices like a dog. You cannot stop yourself and continue lapping her up until she is empty. You shove your face inside her pussy and are forced to lick her walls clean just to be sure. Once she is confirmed clean, you try to lift your head out from her pussy, only to find that your mouth and nose are now sealed inside. You can pull and stretch her pussy out enough to look forwards, but that is your limit.
You begin to panic and your Maddy begins mimicking every sound you make with your mouth. You notice this and try say a sentance, only to have Maddy speak it out loud, verbatim, at the exact same time, and using the same emphasis as you are. She is like a speaker and her pussy is your mic.
After a few tests, you discover that when you are not saying anything, Maddy can speak for herself. But you will always take priority over her own voice and can interrupt at any point. You also discover that Maddy can be made to almost instantly orgasm by clenching and unclenching your hands rapidly for a few seconds. Every time she orgasms, her pussy fills up fully, but will never go beyond that limit either. And you become forced to drink it all up every single time.
On the plus side, she tastes amazing and you easily can consume only this for the rest of your life. But what's even better is that now you have a new purpose and source of incomprehensible pleasure. Being milked.
With your pinkish, pendulous breasts, each topped by a 4 inch long teat, being milked is felt by your entire body. And your boobs are swollen with milk literally dripping from your teats. If you could, you would be milking yourself non-stop, but your hands are occupied. So you beg Allison to handle it for you. Maddy begins moaning for you the second Allison tugs one of your teats. And all 3 of you can seemingly feel your milk being expelled out from your udder, though you feel it the most.
"How are deep does this sexual fantasy go Allison?" You ask via Maddy. Allison shrugs, but realizes you can't actually see her doing it and changes to using words while she milks your leg udders. "No clue. At this point, even I am worried about myself."
"Well, let's hope we find an out to all of this soon, because I refuse to stay like this!" Complained the actual Maddy.
"I just want to go back to it being just me who is stuck on your dick" you grumbled to yourself, and then Maddy spoke it for you and then they both looked at you weirdly.
"Wait, really? You don't want to go fully back to normal? Did you actually like being stuck on my cock that much?" Asks Allison.
"I, I did. It was nice, and we were so close to eachother all the time. And everything always felt good. I liked being held and carried by you around town too. And I think I mentioned this before but I do honestly love being your girlfriend way more than being your boyfriend. It feels so much more comfortable for me to be the girl in our relationship. And you said something similar to."
"Well... yeah. I did enjoy it a lot. No, I still enjoy it. I love having this huge cock." Admits Allison. Maddy however thought otherwise. "The two of you are fucking nuts, you know that right? How can you not be freaking out right now? We literally are stuck together and I don't even know you two."
"Trust me, you don't want to. Knowing who we are would make this a whole lot worse for you" replied Allison.
"No, I do. Where is my little brother and his girlfriend? And why are you two even in my house?" Retorts Maddy angrily. You can tell she will not drop this and you make Maddy sigh for you. "We probably should just tell her..." Maddy says for you. Allison pauses, then also sighs. "Yeah, we probably should since it has gotten her into this mess. OK. Maddy, I am Allison, and she is Chris, or well, perhaps Christa is a better name for her now. She's your brother and I am her girlfriend, er... boyfriend now. It's a ling, weird, and perverted story, and I really don't want to go to deep into it. So please just leave it at this" explains Allison.
Maddy looks hooridly at the both of you as the truth about your current situation is brought to light and then feints. With Maddy out cold, she cannot talk for you either. So Allison just sighs. "Well, at least she isn't screaming I guess" and goes back to finishing up milking you while you both wait for Maddy to regain consciousness.