Prompt was Knuckles and Nack offering their feet to the viewer. Of course, as is tradition, I made them be teasy and sexy, while having some bisexual lighting around~ most of it was very meticulously put in place, specially the lights... wouldn't be a FeetyMcFoot™ artwork if it wasn't over-engineered in some completely unnecessary way, after all :P
Hope you enjoy this one, always glad to share those big, red, sexy, meaty knux soles~ And again, thanks for the support <3