FURVERT!

2013 anthro barely_contained biceps big_muscles biped black_penis briefs bulge circumcised clamcrusher claws clothed clothing detailed_bulge erection erection_under_clothing genital_outline genitals humanoid_genitalia humanoid_penis kokiteno male mammal murid murine muscular muscular_anthro muscular_male penis penis_base penis_outline rat rodent side_view smile solo standing tenting underwear