Sky Stinger and Lightning Dust’s immediate family tree in my headcanon. This applies to all universes, but depending on the universe, the next generations after this point will be different.
 
So yes, I have Lightning Dust as Sky Stinger’s cousin. I’m probably not the first and won’t be the last to have this headcanon. But also I have Thunderlane and Rumble included in here as well. Though technically not blood related to L Dust and Stinger, he’s half brother to Lightning Flare, who IS their cousin. BUT… just remember this isn’t canon when you Thunderlane X Lightning Dust haters try to pull the incest card. And even if it was, I must reiterate that they are technically not blood relatives, even here.
 
%%~  
MLP/Images (C) Hasbro