Man of Steel Saga
As night came to Ponyville Twilight was finishing brushing her teeth, she spit the foam from the toothpaste into the sink and wiped her face as she exited the bathroom. She smiled when she saw Goku sleeping like an innocent child, with cute little snores, she left the room and walked down the lightly lit hallways of the castle.
It had been pretty empty before the Z fighters came, Goku and Goten decided to stay at the castle with her and Spike, Gohan and Videl went to the town hall to pay for their own house, Vegeta and Trunks were staying with Rainbow, Buu was of course staying with Pinkie for the sweets, but where was Piccolo? She saw him sometimes hanging around Sweet Apple Acres but that was it.
Deciding to think about it later she arrived to Goten's and Spike's room, she giggled as she saw Goten sleeping i his bed similar to when she saw Goku. Spike was also sleeping in his own bed across from Goten and sucking his thumb. She walked up to the purple dragon and gave him a peck on the forehead as he stirred in his slumber mumbling something about Rarity.
She watched Goten shake a little, until she noticed that the covers weren't over him all the way. Even though Twilight wasn't his actual mother she couldn't help but act like it. The young half-saiyan lost his mother, thanks to her father which reminded her she had to scold him about that later, but Goten had no other parent to turn to and Goku was mostly training the whole time.
She blushed a little when she thought of marriage with Goku and Goten officially being her son, but that was a conversation for another time. She put the rest of the covers over Goten's body as he had a warm smile on his face, she leaned down and gave him a light peck on the forehead like Spike and left the room. As she walked down the crystal hallways an idea popped in her head.
"Dinner," she saud quietly to herself, "What if I invited everypony to dinner tomorrow night. It would be the best opportunity for mom and dad to meet Goku, Vegeta, and the others. Plus to sort out the whole adoption thing."
She entered her room and saw Goku still fast asleep, she smiled to herself and joined him under the covers. She almost forgot that she was going to have another one of those 'dreams' from Whis again which made her kind of excited to finally got to sleep for once. Wit that Twilight laid her head on the pillow and snuggled close to the saiyan god and closed her eyes, letting sleep take her.
Twilight's Second Dream