FURVERT!

5-d anthro ball_inflation balls balls_expansion big_balls big_penis bodily_fluids catheter catheter_in_urethra crush cutaway dinosaur dominant dominant_male dragon duo erection european_mythology expansion feral forced genital_expansion genital_fluids genitals hose hose_in_penis hose_in_urethra hose_inflation inflation internal interspecies larger_male male male/male male_peeing medical_instrument membrane_(anatomy)membranous_wings monochrome mythological_creature mythological_scalie mythology nude peeing penetration penis penis_size_difference prehistoric_species rangarig_rex reptile saurischian scalie scientific_instrument size_difference smaller_male source_request tail tailbutt theropod tube tyrannosaurid tyrannosauroid tyrannosaurus tyrannosaurus_rex urethral urethral_penetration urethral_transfer urethral_tube urine urine_in_balls urine_inflation vein veiny_balls veiny_penis western_dragon what wings