FURVERT!

1:1 amanda_(mattythemouse)anthro canid canine duo erection female fox fur genitals gentle_giant green_eyes grey_body grey_fur hair hi_res house_mouse humanoid_genitalia humanoid_penis larger_male macro male mammal mattythemouse micro mouse murid murine nipples nude penile penis penis_riding pubes red_hair rodent size_difference size_play smaller_female tail vulva