Natasha's POV

"Introduction time!" Tony said over cheerfully. They all nodded and put their food down. "Nat, you start." She nodded nodded and stood up. "Natasha Romanoff, ex-assassin, ex-S.H.E.I.L.D agent and full time Avenger." She stated said. "New suite?" Clint asked, pointing to her new outfit. "New personally I guess." He nodded and Tony continued pointing to Xoe. "Xoe Kuplen fighter of Artemis and a current resident of the Avengers tower." This earned a few stares. "Oh and, I fought a god with this bad ass over here." She said shoving Natasha slightly. She returned the shove and smiled. Then their stares directed themselves to a girl in the corner next to Piper. 

"Oh, Isabelle Valdez. Daughter of Hermes. And, Piper's my girlfriend." Now, this got a few reactions. One, Jason's scowl at Piper dumping him and two, Leo spitting up his orange juice at the mention of his last name. "Say what now?" He asked, staring wide eyed at the girl. Isabelle looked confused and Piper looked utterly shocked. "What?" Did I say something?" She asked. Finally, Leo spoke up. "That's my last name." Steve coughed. "Could just be a coincidence. Happens all the time." Tony shook his head. "They kind of look alike, too." Everyone turned to look at the two. "Practically like twins." "Enough." Percy spoke for the first time in what seemed like hours. "She's the daughter of Hermes, he's the son of Vulcan. Not even the same god type." He stated. "So, aren't Hazel and Nico related? Different god types. Same god." That bought up some tension, Natasha broke it. "That's totally different, same god different mothers." Everyone nodded. "They can solve this the easy way, Tony, take a DNA test." Hawkeye suggested, motioning to the two stunned and confused kids. Then, Isabelle said what they were all thinking. 

"But I'm not real." She stated. "Gaea created me to be an illusion to wipe out someone else..." "Me." Jason said. Piper rolled her eyes. "Well you are in the real world now, does that not make you real?" Thor asked the girl. She shook her head. "Just because I was bought into the real world, doesn't mean I'm a real person, if you even can call me that." She looked down and Piper placed her hand on her back to comfort her. Jason shifted in his place where he leaned against the kitchen island. Percy spoke up. "Just, take a damn DNA test and you can have this conversation with Piper later."He said and walked off, Jason and Nico trailing behind them. Xoe cleared her throat and spoke. "I'm gonna go, no offense but this seems like an Avengers problem and I, am no Avenger." Steve nodded and Xoe walked off along with Annabeth and Piper following. When Leo and Isabelle tried to leave, Tony put his hand out to stop them. 

"No so fast, you two. Both of you are coming to the lab with the rest of us. We are going to run a few tests."

Leo's POV

"They are pretty much exactly the same." Bruce said, walking out of the lab, Tony behind him. "Impossible, she isn't even real." Leo stated, clearly confused. Isabelle glared but nodded. Bruce shared a look with Tony who shook his head. Natasha noticed the tension and confronted it. "Bruce, what did you and Tony find?" She asked. When he didn't answer she paced around him, thinking. "You do know that I specialize in torture, right. I did just fight a god and didn't die. So do you really think that I can't break, Bruce Banner?" She glanced him up and down until his face turned red. She walked up closer to to him and pressed her hand up to his ear and whispered hollow words that made Leo twitch. Bruce shivered and confessed. "Okay! Fine!" He said, letting out a breath." Tony shook his head. "Come on, Banner, you couldn't hold for a little while longer?" He ignored him. "What's wrong?" Leo asked, sneaking over a look at Isabelle. She looked him back and they shared a mutual bout of fear. 

"You DNA is almost completely alike. It's closer than twins and identical ones at that. We tried figuring it out without the possibility of our theory but we couldn't over look it." "Couldn't over look what?" Steve asked. Hawkeye stared the two teens down. He and Natasha locked stares and Thor stared at the ground.

"Leo, Isabelle. You're the same person." 

A/N

I added a face to Isabelle on the cast list, I used Selena Gomez for her because I was looking for people who looked like Leo's character, Jake T Austin when I came across this photograph...

Tell me they don't look alike? At least in this picture, anyway. Also I wanted them to at least be around the same age sooo, yeah, that's all, see you later!

P.S: I know that the picture of the DNA test wasn't completely the same but I just needed a close enough example. Bye!