A blast from the future

Author's note: Sorry if you are a fan of the reboot continuity. I simply cannot like it.

Ben returned to his room with his mind on the cloud. He couldn't believe his luck. In such a short time, he had sex with two different women, and both allowed him to do them bareback! He went to sleep with a smile on his face.

The next morning, Ben went to Mr. Smoothy to buy some drinks. Suddenly, lightning was everywhere, and with a rumbling sound, a portal opened mid-air. From the portal walked out a guy in white armor.

"Who are you?"

"Hello, Ben Tennyson. I'm Chrono Spanner, a hero from the future. I come back to the past to save the timeline."

"Oh, so there are villains trying to set wrong what once went right? Who are they? Vilgax? Forever Knights? Maltruant?"

"Eh... no. In fact, it's you who did this."

"Me? No way!"

"Listen to me first! In the future I come from, you are known as Ben 10000..."

"Oh, I already knew that part! It's because the future me has mastered 10,000 alien forms..."

"No, it's because in the future you have fathered 10,000 children. You received the annual reward 'The Man Who Made Most Half-Breeds Across 23 Galaxies'. For 60 years."

Ben felt it was half-embarrassed, half-funny. He didn't know whether he should laugh or not.

Spanner continued: "The problem is, in the Sacred Timeline, you'll always end up with Kai Green and have your first child with her."

"Kai? But she didn't even like me! Wait... you said that I'll have my first child with Kai? But I..."

"I know what you did last day. Lucky for us, you missed your chance with Mrs. Saturday, and Aunt... I mean Miss Gwen didn't ovulate yesterday. But the day after tomorrow will be her risky day, and she won't intend to stop sleeping with you."

"So you are telling me that I have to keep my hands off Gwen for two day?"

"I like to, but that is impossible. You cannot refuse her. There is one case in which you transform into Alien X and cannot convince Serena and Bellicus to let you turn back to Ben. Then she comes and undresses herself. You immediately turn back and the two of you make love right there."

Ben felt so ashamed, so he tried to cover it with anger: "Honestly, I begin to think you are making a storm in a teacup. How can who I fuck affect the universe? Besides, what is the worst that can happen? The universe is destroyed? Then I can simply turn into Alien X to fix that."

"No, the universe will be rebooted. Into THIS!"

Spanner took out a photo.

"WHAT? Please don't tell me this brat is me! Please!!!"

"Sadly, he is."

"Okay, I'll prevent this to come true no matter what the cost. What do I need to do?"