Niall had the house baby proof, so when the girls were ready to crawl they could crawl around and he could see where they were when he either down or up stairs

"Gia you going to crawl huh big girl?" he asks her cause she was fully ready to crawl and Noelle was just playing with her learning table that was on the floor and she wanted to stand more and more but her legs were not strong enough

Gia started to rapid crawl to her daddy cause she was fully ready and get it over with

"Okay Noelle when you are ready to crawl you can go at your own pace" he says as he was talking to her right now

(Days later)

Gia was crawling all over the place, and having the time of her life right now

"Noelle it's okay if you don't wanna crawl like your sister" he says as he was playing with her and keeping an eye on Gia cause he kept the girls in their huge playpen, so they were safe as they played

Noelle got into position to do the army crawl

"You gonna crawl today sweetheart?" he asks her

Noelle gave him a big grin and she started to crawl army style

"As long as you crawl that is good enough for me" he says as he was looking at her

Noelle army crawled from one end to another and Niall was proud of her for crawling on her own and he knew that how she was going to be crawling from now on

"Okay all I have to do is wait for them to start walking a bit then I am in trouble" he says as he was looking at the girls

(Months later)

The girls were crawling and Noelle was crawling all over the place with her army crawl and Gia tried to get her to go faster and Noelle was just fine at going with her own pace right now 

"Gia give your sister a break" Niall says as he looked at her cause he was a little ticked that Gia tried to hurry her sister along

Gia got pissed off and hit Noelle

"Gia that wasn't nice" he says cause he had to start getting tough with the girls

"Da da da" Gia says cause she was not a happy girl

"Gia even though you said your first word you are still in big trouble" he says as he was looking at her cause he had to be both the good cop and the bad cop with the girls even though he didn't want to he had to 

Niall was going to do time out with them and as they get older he will do different methods of discipline like the stoplight system when the girls hit red they will lose everything and they will stay on red until they earn his trust back

"Gia we are going to do this for a minute" he says as he was going to sit with her cause she was too little to understand it

Niall did a timer and when a minute was up he took her out of time-out

"Gia are you ready to be a good girl?" he asks her

Gia nods as she says da da again

"Okay now to tell Noelle you are sorry for what you did to her" he says as he was taking her back to where Noelle was

Gia nods again

"Come on then" he says as he takes her to where Noelle was

"Noelle your sister wants to say that she is sorry for what she did to you" he says as he was sitting with Gia who looked like she was faking it

Noelle stood up and wanted to hug her sister

"See you two play while daddy makes some calls" he says as he was going to make some calls

Gia started to play with the toy that Noelle had and Noelle wanted to play with it

"Girls share" he says as he came back to the girls

Noelle is next

Noelle is totally up