Today’s NSFW Luna is…

The Mane Dicks!

Because I like bad puns. And it is lewd.

Just draw any o’ the mane six with a wing wong, simple as that! As many as ya like, your call.

You’ve got 45 minutes to create followed by 15 minutes to submit! Have fun!

Sources:
https://derpibooru.org/images/2135643?q=Artist%3AEmpyu+%2C+Futa
https://derpibooru.org/images/484347?q=Futa+Rarity