Sister fight v1 "Picture commission" (Patreon)

Commission by Croc 

Every fight between those two ends this way, as Pinkie is the only one who can reach the fullest depths of her sister. Must be frustrating, huh Limestone?~ 

Next up is another picture commission, but I'm going to be travelling a lot for the next week. I'll do my best to make at least 2 or 3 things before the month is up.