Alright! 
So a bit of a standing 69, idk if it might be the first time I do one actually! :D!
Featuring Lulu (right) and Amber Yuki (left), with a bit of a Holmgang chain spell play!
I must admit when I first read Lulu having a knot-futa dick, I was a bit hesitant, but then I thought "well with a Viera it might actually work quite well", even did a bit of a random doodle to see how it would look, and it does work! haha
No but, a fun picture to work on, sorry I took quite a while to post it.
Hope you like it!
Cheers!