When desperately low on battery, Synths can resort to bio-fuel to recharge! Seems you're being given the honor.

That synth had been up to no good, though finally began to run low on batteries after causing so much trouble. With no charging stations nearby and a lack of batteries it seemed the only option left was to resort to recycling, finding a handsome canine that he was more than happy to scarf down... Though just as he was finishing that meal it seemed someone else had made their way into his abode, with the robot more than happy to add to his underfilling snack.~

Not much synth on this site, here's another bot for you perverts that are into this kinda stuff. While digestion is the focus, it is capable of being softer on you if ya prefer that kind of cutesie content.

Artist: Haps https://static1.e621.net/data/20/88/2088036fab1c8ecdfed65c34c9bb6c7f.png

Tags: Male, , Digestion (Optional), Robots, (Optional), (Optional).