"Can you open this jar of jam for me?" it was your sister (Sandra)who came into the room asking you to open a jar of jam that she couldn't open on her own.
By being taken aback, you froze and didn't hide your triple erection, and as soon as her sister noticed she let out a scream.
"But what is this Dave(you)? You should have locked the door if you were to do that." Sandra said in a tone of surprise.
"Sorry, I should have been more careful." you said
"Wait, but since when do you have 3 penises?" Sandra asked
"Just a few minutes since I started testing this gun I bought." You said taking the gun and showing it to her.
Seeing how she stared at the pistol at its three hard dicks, you ended up with an idea and decided to test it. Then you aimed the pistol at her groin and fired.
Sandra reacted quickly and blocked with her left hand and slapped the pistol with her right hand, making the pistol fly against the wall and fall to the floor behind the bed.
"What do you think you're doing? Do you want to make me a freak?" Sandra said angrily.
"You don't have to be so mad. The effect is not permanent, so I would make you go back to normal." you said
That was when a dick and balls grew in the back of her left hand. It was huge with at least 10 inches erect.
"'This is strange, but since it's temporary I'll enjoy it." Sandra said and started masturbating the dick on her hand. You didn't stand still and used your hands to play with your three dicks. You both came to orgasm at about the same time.
Right after masturbation Sandra commented "So that's how men feel when they come."
"Almost this, no man has a dick sticking out of his hand" you said
"That was fun, but now I'm hungry. Get me back to normal so I can eat." Sandra said
Then you will get the gun behind the bed and ....