Quite funny dialogue... and it inspired me to make some alternative version:

ScrewBall: Hi Daddy!

Discord: "Daddy"?

Rainbow Dash: Uh.... Is there something you haven't mentioned us before?

Spike: Yeah. Like some relationship that would interested Fluttershy?

Pinkie Pie: *giggle* You silly, she is her daughter!

Discord: Wait, what? She's my and Fluttershy's daughter, that doesn't make any sense!

Screwball: But what's fun about it daddy?

Discord: Right, maybe she is my daughter, but how? That's impossible!

Pinkie Pie: She's not from current time!

Screwball: Auntie Pinkie is right, You told me that i can go to You any time, so i thought it will be funny to go to You in time before i was born! So i borrow one device from Dinky's father and I'm here now. Can i play with You? This game looks fun!

RainbowDash: Maybe better not tell Fluttershy about that yet...