FURVERT!

after_anal after_oral after_rimming anthro anus balls big_glans bodily_fluids canid canine canis circumcised classroom clothed clothing digital_media_(artwork)duo erection excessive_genital_fluids excessive_precum frenulum genital_fluids genitals glans graded_penis hi_res humanoid_genitalia humanoid_penis larger_anthro larger_male leaking_precum licking licking_lips male male/male mammal mustelid nude otter partially_clothed pawpads penis precum saliva_on_anus school size_difference smaller_anthro smaller_male spread_legs spreading student teacher teacher_and_student themutt tongue tongue_out upside_down wet_anus wolf