FURVERT!

5:8 after_orgasm_torture akira_(character)anthro balls bdsm blush bodily_fluids bondage bound collar gag genitals hi_res hybrid laboratory machine male mammal multiple_orgasms nanori-chan orgasm overstimulation penile penis_milking penis_milking_machine procyonid raccoon restraints science sex solo straitjacket straps study submissive toy training