On the way home, when they stopped at the red light, Maya noticed that Wendy and Mavis were crossing the street right in front of them, but something didn't seem to be right with them. They only managed to see them from the side, but the twins seemed to be too close to each other.
"Wendy, Mavis, come here. We give you a ride." Maya called the twins.
Wendy and Mavis listened, turned to face the car and ran over there. With that they could see what was strange about them. Maya and William knew that they should have bought something from the candy store that left them like that, because they were sharing a single body and they were running with the three legs that they had.
"You're still around Maya." said Mavis, who recommended the left side of the body.
"We were really looking for a place to relieve ourselves, but we didn't know where to do that." said Wendy
Looking closer, Maya noticed that the twins had three breasts and the bulges in her pants made it clear that they had a cock in each crotch of hers.
"Come on, get in the car." Maya said and the twins did just that.
Once inside the car, as soon as William started, they noticed the pair sitting in the front seats and Wendy said " Is it just me or am I seeing two Mayas?"
"It looks like it, but this one driving the car is my husband William, he ate a cupcake from Granny that turned him into a copy of mine." Maya said
"Hi girls" William said, greeting them
"What about you, what did you buy that made you conjoined?" Maya asked
"We eat a chocolate bar that, when eaten by more than one person, everyone who ate it, becames conjoined for 12 hours" Mavis said
"And the best thing is that we also end up protected by magic that makes people who don't know us not find it strange and not even realize that we are transformed. Even so we can't do anything perverted in a public place." Wendy said
"Very interesting. there is so much different that we can try." Maya said
After a few minutes they all arrived at the twins' house, where they got out of the car but, instead of just saying goodbye and entering their house they said, Wendy said "Wouldn't you like to stay at our house tonight? We can celebrate today's victory together."
"And we also want to do it together with you, of course only if you want to do it too." Mavis said taking her hand to one of the bulges in their pants.
"I am interested in that. And you William, what do you say?" Maya said
"Why not? we have nothing to lose. We accept the invitation." Willian said
The four entered the house and went straight to the twins' room. They knew that their transformations would be over in a short time, so they quickly took off their clothes.
"Now that we are ready we want you to turn your back on us." Mavis said
"We are going to fuck you both at the same time." Wendy said
With that Maya and William stood side by side with their backs to the twins, William offering his pussy and Maya offering her ass. With that the conjoined twins went after them and penetrated them, with Wendy's cock entering Maya's ass and Mavis's cock entering William's pussy.
The stimulation ended up being too much for Wendy and Mavis, mainly because they could feel each other's cock, and ended up cumming it too fast. William also had an orgasm.
This orgasm came at the last moment for the conjoined twins, because as soon as they started to come, their cocks disappeared leaving vaginas in their crotches.
"Now you are being cruel to me. They make me very excited and leave me without having come yet." Maya said
"Don't worry baby, I won't let you down." William said and then immediately put as much of Maya's dick as he could in his mouth and started giving her a blowjob. Without saying anything, Mavis and Wendy went in from below and started sucking on Maya's sack, each sucking on one of her balls.
They kept doing it until Maya announced that she was going to come, so William got ready to swallow her cum, but it was hindered. Mavis lifted his head so that he couldn't keep Maya's cock in his mouth, and Wende stroked her cock making her come.
During her orgasm, Maya made sure to move her cock so that her cum would hit both William and the twins, leaving them with cum all over their faces and chests.
After Maya's orgasm ended, the donut she had eaten ended and she recovered her vagina just before William also returned to normal.
"This is very good. I can't get enough of it." Maya said
"It is true. But we are still not satisfied." Wendy said
"What do you think about continuing." Maya asked
"Of course, we will continue." Maya said and ate another donut, making her stick grow again. The conjoined twins did the same, but William couldn't, because he no longer had cupcakes.
After that the four continued in an orgy until the donuts were gone again, then they ate a normal pizza and went to sleep.