From source:

"Hey guys!

Sooo, this is some quick, silly SpitDash I came up with today. I had an Anthro drawing in mind, where Spitfire is pulling on Rainbow´s underwear, so it snaps back xD That´s the idea, just Spitfire being sneaky and kinky lol (I hope that was the right word :worry::confused: )
I actually like how it turned out when it comes to some parts like Spitfire´s hands or their facial expressions. There are still sooo many things I need to learn and I´m trying to do just that. I see my mistakes here and there and well, maaaybe that won´t happen again in the future xD We´ll see
I draw these black and white Anthro pictures to practice working on my lineart and to make more clear, certain and smoooooth lines instead of ugly ones.

soo yeah, I really hope you like this little thingy :P"