Hello everyone! Thanks for reading :3

First of all, I would like to clarify 4 things: this is my first fanfic on this topic, so I don't have any experience, I don't speak much English, so I'll use a basic language and google translator will help me with this fanfic; If you want to help me improve the writing I invite you to comment, and I am going to use bold to indicate the dialogues and thoughts of a person who is possessing another or is possessed.

Thank you.

(I promise that from chapter 5 sexual situations improve a lot)


Chapter 1: the alien trapped in the omnitrix.

Ben did not know why, but for a couple of weeks he had felt quite strange, at night he had nightmares with one of his aliens, ghostfreak, a powerful but creepy creature, who had quite particular abilities such as becoming invisible, intangible or flying, Or at least those were all the powers Ben knew.

One summer morning, Ben woke up particularly in a bad mood, that night he had not been able to sleep well due to nightmares with ghostfreak, but that night it had been but, he felt as if the nightmares were almost real.

That morning Ben fought with his Cousin Gwen, something common between them, but this time there was something different, they were not simple insults like calling her stupid or ugly, this time he insulted her on a more personal level, insulting her parents or messing with her body , telling her that she was a bitch and that the only positive trait she had was that big fat ass, something Ben would never tell her.

meanwhile on the river bank a strange creature appeared, a plant monster that suddenly began to attack the people who were camping, without thinking twice Ben ran to help the campers, then Ben exclaimed "it's time to be a hero "Ben selected heatblast, he was the perfect alien for the job, so he pressed his watch and everything lit up with a green light, at that very moment his grandfather max and his cousin Gwen appeared to help, but both took a huge Surprised to see that the alien that Ben had transformed into was none other than ghostfreak, Gwen exclaimed "I'm sure you had 9 other options that could do a better job, idiot" to which ghostfreak replied "yes? then I will show you how dangerous it can be" out of nowhere ghostfreak began to remove his cape, revealing a grayish, skeletal appearance with sharp claws, however while doing this the sunlight seemed to damage him a lot, so he hid in the shadow of a tree, abandoning all the people who needed it.

Seeing this Gwen and Max decided to stop the plant monster on their own, Gwen kept him distracted while Max searched for a weapon that could kill the creature.

Ben thought, why am I doing this? I never ran away from a fight, so he regained control, put the blanket that covered ghostfreak back on and flew off to attack the monster, however, grandpa max who had just found the weapon that could destroy the plant creature shot .

The explosion was so powerful that ghostfreak was pushed violently and collided with Gwen.

When he was able to get up, Ben noticed that he had returned to being human, however something was not right, he felt lighter and weird, Ben ran towards the river and saw his reflection in the water, when he saw it he could not believe it, Ben was in Gwen's body.

Ben immediately thought "wow, this is quite strange, although not bad at all".

Ben observed Gwen's body reflected in the water, it was beautiful, it had curves that seemed extremely erotic, and especially her huge ass that cried out to be groped, these were strange thoughts for Ben, since he had never felt in this way for her cousin, but this time there was something different, it was a rather strange feeling, as if someone else in her head was crying out to touch Gwen's body from all sides, discovering what it felt like to be groped, exploring every inch of her body. ""I must get out of her body right now", although immediately afterwards he had a rather unusual thought, almost as if it were not the same "although ... this bitch is always bothering me, I could have fun with her for a while and teach her a lesson".

Ben was about to finger his cousin's body so he brought Gwen's hands to his ass with a lewd look and almost drooling to imagine squeezing that beautiful ass, however his grandfather Max came running to make sure his grandchildren were safe , Ben exclaimed "that old man bothering like always" then he left his cousin's body and immediately returned to his human form.

"are you okay? the explosion was stronger than I thought, I hope they didn't get hurt" Max said as he approached.

Ben was afraid that his cousin would give him away, that she would say what Ben wanted to do to his body, but then Gwen said "well, I just remember that I was close to the monster, then it got blurry and now I'm here by the river".

Ben couldn't believe his luck, his cousin didn't remember anything, so he thought that maybe he could get back into his cousin, after all he still felt quite strange, his heart was racing, and the only thing he could think of it was in possessing Gwen's body again.

Before he could say anything, Gwen exclaimed, "That monster exploded and stained my favorite shirt, I'll go take a shower."

Hearing this Ben could only think of one thing "that bitch is going to be naked and completely alone for at least an hour, if I want to possess her body again this is my chance".

End of chapter 1