i find when i got writter's block i try something outside of my comfort zone, a short story that is completely not me, it opens my mind to new ideas i never would have considered before. you are great at damsel in distress circumstances with the added element of bondage, futuristic, and stand alone poses. So try and add that styling to a unfamiliar setting or target. for example, an Anthro like Crystal Fox, or a dragon in a medieval setting holding a captive, or the dragon as the captive. 
some of the greatest ideas in history have yet to be discovered to their full potential, i personally use myths and legends as a cornerstone of my designs. in your case i would try to take something old (or just past) and remake it in the future, like a vehicle and add a cybernetic element, or a horse that symbiotically fuses to its rider, or any random thing that can be found by flipping through a dictionairy and stabbing your finger at it. 
hope i helped some creative juices to flow, if not sorry for wasting your time.
keep up the good work, i'll be watching