Scootaloo is sad because of an abusive relationship, so as you could imagine that type of thing happening on the day of her 21st birthday is not that great. so when Rainbow Dash finds Scoots alone crying in an alleyway behind Sugercube Corner, where the party was supposed to happen, she puts cheering up her sister at top priority.
Warning: Story contains topics such as abusive relation ships and the story also implies sexual abuse and narcotics use, but everything is mostly implied and not happening much in the story.
Also consider this an early version of this story, as it will be updated with maby more text and polished diologue and all that good stuff.
(No art made by me unless stated otherwise.)