FURVERT!

3_heads abs anthro barazoku big_muscles bodily_fluids briefs bulge canid canid_demon canine cerberus clothed clothing demon detailed_bulge drooling erection erection_under_clothing european_mythology genital_outline greek_mythology hachi_duchi hellhound hi_res kemono kerchan_(hachi_duchi)male mammal multi_head multifur muscular mythological_canine mythological_creature mythology pecs penis_outline saliva sleeping solo some_heads_sleeping underwear