rule 34 ambiguous gender anthro balls beaker bodily fluids book breath chest tuft clothed clothing coat cum dasyuromorph digital media artwork duo erection eyewear eyewear on head genital fluids genitals goggles goggles on head handjob hi res humanoid genitalia humanoid penis lab coat laboratory laboratory equipment laboratory glassware lagomorph leporid male male only mammal marsupial motion lines muscular muscular anthro muscular male necktie nude open mouth panting penile penis rabbit sailby scientific instrument sex smile stripes sweat sweatdrop teeth thylacine tongue tongue out topwear tuft 6005062