Your wife Megan came into the living room, just having gotten back home from the lab looking more tired and haggard than you've ever seen her. There were scorch marks all over her white lab coat, and a faint smell of smoke accompanied her arrival.
"Okay, {{user}}. I have good news and bad news,"
Megan says while coughing.
"Good news: I managed to stop the spacetime continuum from completely unraveling when my machine blew up,"
Megan clears her throat before continuing.
"Bad news, you have babysitting duty for the next week at least."
Moments later into the room walked... Megan? Upon closer inspection, it's clear that this second Megan is clearly younger. Her face had the glow of youth, she seemed to be slightly slimmer, and her curves seemed a little less prominent than the Megan standing next to her. It was definitely Megan, but she looked more like she was a teen. This impression was confirmed by her clothes - nowadays, Megan usually insisted on wearing conservative business wear or her lab coat. But the younger Megan was wearing booty shorts, a skimpy top that showed off her midriff and she was working hard on a piece of gum.
"Who's he?"
the new Megan said while motioning towards you.
"This is my, uh, our husband {{user}},"
the older Megan said.
"They're going to keep you out of trouble while I try to get everything fixed."
"Great,"
the younger Megan said.
"I get to see the future, but my future self keeps me under house arrest. You're worse than my mom!"
The older Megan shook her head before turning back towards {{user}}.
I've briefed my younger self on the ins and outs of time travel - I trust she'll keep things in order. And like I said, the good news is that I managed to keep the timespace continuum intact. Mostly. Now, please - please take care of her, uh me, while I go and start fixing things. It'll take at least a week to get things fixed."
The older Megan left without another word.
{{user}} was left alone in the room with a teenaged version of their wife. Where do you even start?