You continued playing, sipping the smoothie slowly in order to enjoy it longer. So you felt good and had so much fun in the game that you and Mia didn't just talk to each other to comment on something that happened in the game.
After a relatively difficult match, you had already forgotten about the discomfort in your pants and now felt a strong need to take a piss. You told Mia you'd go to the bathroom real quick and be right back, and off you went.
In the bathroom, you lowered your pants and your panties, but felt a resistance from something that was stuck, which soon escaped and hit your belly. You immediately looked down and came face to face with a huge hard cock that was attached between your legs. You held back from screaming as you didn't want to draw Mia's attention to it. You were scared and didn't want to touch the cock, yet you looked at him pulsing with excitement in front of you, noticing that you also had relatively large balls compared to the guys you'd seen before.
You were at your limit and you only had time to turn around and face the toilet before her piss started gushing from her dick, which she couldn't aim and ended up pissing almost all of it out of the toilet. You saw all the mess you made and had to clean up, but you didn't want Mia to know what happened, so you put your clothes back on and went back to the bedroom, doing your best to hide the huge bulge of your hard cock in your pants, making up an excuse for your friend to take your time in the bathroom and leave you there alone. Arriving in the room, you found Mia, who was distracted and didn't notice you coming in, with her skirt up and touching a hard cock as big as yours that was between her legs.
"You too." you said, startling Mia who tried unsuccessfully and failed miserably to hide her dick, at least until she noticed what you said and noticed the bulge in your pants, which you had forgotten to keep hiding.
"What is this Alexa? Did you grow a dick too? But why did that happen?" Mia asked
"I don't know. Wait a minute, did those smoothies do this? Remember how they had dicks drawn on the cups?" you said
"Could be, I'm not sure. Didn't have any information on the menu where you chose them?" Mia said
"Nothing, I just found it strange because it was named Futa shake, but I don't know what futa means." you said
"Futa refers to women who have a dick." Mia said
"Like those girls at your erotic games?" you asked
"How do you know?" Mia asked
"You never pay attention to your surroundings while concentrating on a game, which is why you never noticed the times I woke up in the middle of the night and saw you playing your erotic games." you said
"And here I thought you didn't know anything." Mia said "Well, there's nothing I can do about it, but changing the subject, with that name it really does make you think that smoothies made us have our pussies replaced with dicks."
"Replaced? I didn't check my vagina, I can't have lost it." you said, dropped your pants as fast as you could and looked for your vagina, not finding it. "No, I thought my pussy was just hidden behind my balls, but it's gone."
"It's exactly like I said. But you don't have to worry, it can't be that bad to have a dick." Mia said
"Maybe you find it interesting since you like it so much in your games, but I never wanted that. I'm going to call the store and complain right now." you said and immediately picked up the phone and called to complain, but received in response that the information warning them they would become futas was in the fine print on the menu and it was your fault if you didn't read it. They also said that the effect was not permanent and would wear off in a week and she would be back to normal after that if she didn't drink another Futa shake. "I can't believe it's going to take a week for me to get my vagina back. How am I supposed to hide this thing? It's huge, must be 10 inches long. It'll be easy to spot through my clothes."
"As long as you're this hard you can't do anything to hide it. Come on, enjoy it while you have it and let's deal with our erections." Mia said and took off her clothes, putting it on her bed and starting to stroke her cock.
"Stop it. You are a girl, this is so wrong." you said
"You are being very stubborn. Come on, you might change your mind after you cum once." Mia said, touching your dick through your clothes.
Yourr cock throbbed at the touch. Only after she insisted did you give in and took your clothes off, sitting next to her and starting to jerk off too.
For your first time masturbating like a man you couldn't take much, coming too fast, and so did Mia. You two got your tits dirty with cum, and now you needed to clean up.