Pinned Down

Sprinkles decided to jump Null and pin him down. The real question is: What does Sprinkles want to do to him??? Where do you all think this should go? Leave me an idea in the comments if you have one.
I don't Ship Null and Sprinkles together but I did this as a fun little drawing for my friend luv4horsez . Sprinkles is her character. 

I'll have an alternate version up soon with Sunny Zest in place of Sprinkles, since I DO ship those two.

Edit: Oh yeah, I also forgot to put that I have yet to shade this (or at least attempt shading). And shaded attempt will be added shortly as well.