Izuku, You lucky Bastard

Cousins

Okay y'all this is the first time I'm writing a crossover of My Hero Academia and Gravity Falls.

??: OH, Grunkle Stan and Grunkle Ford we're backk!

Soos: Oh boyy!,  look whose back after three years! The mystery twins!

Its been three years since the Mystery twins visited Gravity Falls and still nothing changed well except for one tiny thing.

The two Grunkles rushed to greet the twins after the twins gave fist bumps to Soos who was standing next to his long time girlfriend.

Ford: How are you guys?

Stan: Why did you brats waited for three years to return?

They continued on chatting while Dipper's eyes were searching for a red haired girl who were nowhere to be found. A few minutes of talking and catching up the Grunkles finally let the twins settle in their usual room, after unpacking their things Dipper left his sister who was talking as he rushed at the back of the shack to look for Wendy. Soos did tell him Wendy would visit today, its finally the day, he could confess to Wendy, he isn't a child anymore and he sure as hell knows Wendy is single, Soos did tell him Wendy is in a kind of ship for two years now, he didn't really understand it but he figured Soos meant Wendy and her family went sailing for two years. His heart beat become a little rapid, the more he steps closer to the red haired who was unaware of him the more anxious he becomes. He was five steps away from Wendy when he tapped her shoulder. The girl turned around, her eyes went wide as she saw Dipper, she gave him a short hug and ruffled his hair.

Wendy: Dude, its been three years, What took you so long to visit?

Dipper: Well uhmm, uhh, school was kinda busy and Mom sent me to some camp the last three summers and well it took us three months of convincing for our parents to allow us to visit here but enough about that I really need to tell you something Wendy.

Wendy: Uhm sure what is it?

Dipper: You see the last three years we haven't seen each other, I just want you to know, I still like you and I'm 16 now, I was wondering if you uhm uhh, wanna go out on a date with me?

Wendy froze for a second as she sigh heavily and looked at Dipper.

Wendy: I'm sorry Dude but you're really like a brother to me and I don't want to change that plus I'm in a relationship now. I've been seeing this guy for two years now.

Dipper: Who Rob? I don't mean to be arrogant but I am better than him.

Wendy: What? No! I'm seeing your cousin.

Dipper: Cousin? What are you talking about? I don't have any cousin that visited Grunkle Stan.

Wendy: Yes you do, Stan was the one who introduced me to him, I met him the next summer after you guys left. He spent his summer here to train and well things started there. He's from Japan but he's really good in English he also got a nice ass.

Wendy said blushing when she heard a sound of a motorbike, she unintentionally squealed and ran to the entrance as she keeps on reapeting the phrase "He's here".  Mabel who was a little upset her brother snuck out on her went to the entrance of the Shack to check out who arrived, she saw a teen with green hair took of his sunglasses and leather jacket. Mabel blushed as she shamelessly approach the guy, followed by her Grunkles.

Mabel: Hiyyaa! My name is Mabel I'm single, what's your name and status handsome?

Grunkle Ford: Mabel-

Izuku: Oh my name is Izuku

Mabel: Well hello there Izuku, what brought you to the Mystery Shack? Looking for a souvenir? a girlfriend maybe? You know I'm really single.

Grunkle Stan *sigh*: Mabel-

Izuku: I'm actually here to visit my Uncles-

Mabel: Really? Whats their name? maybe I know them.

Izuku: Oh Stan and Ford.

Mabel: Cool! My Grunkles names are Stan and Ford too! Maybe we're really meant to be..

Mabel said smiling as the three men sigh in disbelief when Wendy appeared out of nowhere and jumped onto Izuku and kissed him. Mabel's jaw dropped at what she witnessed as her Grunkle Stan put his right hand on her shoulder.

Grunkle Stan: Mabel this is Izuku...

Mabel: Yes, I kno-

Grunkle Ford: Your cousin.

Mabel: That, I did not know....

Wendy broke the kiss as she continued to cling to Izuku who looks like he didn't mind. Damn a new side of Wendy just showed.

Izuku: I missed you

Wendy: I missed you more

Izuku: Nope, I missed yo-

Dipper: What's going on?

Mabel: Hey, bro bro, did you know we have a cousin this handsome?

Mabel said gloomingly as she wished she was just adopted damn.

Grunkle Ford: Izuku, My boy, how are you?

Izuku: I'm doing really fine, Uncle. I'm graduating next month!

Wendy: Really?

Izuku: Yup and then we could get married.

Izuku grinned making Wendy blush and bury her face on his chest while the rest wondered where did this version of Wendy came from.

Dipper: Hold up... Marriage? isn't it too early for that? I mean I even doubt your family knows Izuku ye-

Wendy: Actually Izuku met my family when he asked for my father's approval of him courting me. Maybe that's why Dad really likes Izuku and almost cried since not only did Izuku not flinch at their scary auras but he also joined and vibed with them. When we officially started dating Dad even insist that Izuku calls him Dad as well.

Wendy said chuckling making Dipper's jaw dropped while their Grunkles looked at Izuku proudly.

Grunkle Stan: HAHAHAHA, Well done, Izuku.

Grunkle Ford: Oh right, lets get you settled, where are your stuffs and is it okay if you bunk with your Grunkle Stan for a few weeks?

Izuku shivered at the idea since well he uhmm saw lots of things in his Uncle's bedroom.

Wendy: Or... you could just stay with me in my room....

Wendy said bitting her lower lip as she kissed Izuku's neck.

Izuku: I'm actually planning on staying in my Aunt's house this summer, if its alright with you guys? she kinda got upset I didn't stay with them when I visited.

Everyone: You got other relatives here?

Izuku: Of course, I always told you guys that.

Soos: I honestly thought it was just your excuse to get out of doing your chores.

Izuku: What? I don't make excuses to get my chores done!

Grunkle Ford: Well could you comeback for dinner tonight? I'll make your favorite Katsudon!

Izuku smiled as bright as his face shows but it was replaced with gloomy aura remembering he already made plans.

Izuku: I can't do tonight, Uncle. Maybe tomorrow night?

Grunkle Ford: Sure kid as long as you promise to go fishing with us tomorrow morning.

Izuku: Sure!

Grunkle Stan: Well, we'll leave you guys right to it, it looks like you have plans with your girl, see you tomorrow and nice ride by the way Izuku!

Grunkle Stan said as he covered Dipper's mouth and Grunkle Ford dragged Mabel inside who was still mumbling hoping she was adopted.