FURVERT!

animal_genitalia anthro ball_tuft balls big_balls big_sheath bodily_fluids canid canine canis caption chest_tuft classroom clock desk diagram domestic_dog eatmybuns english_text erection front_view fur furniture genital_fluids genitals glans grey_balls grey_body grey_fur grey_sheath hi_res humanoid_genitalia humanoid_penis hybrid_genitalia hybrid_penis information_board inside knot knotted_humanoid_penis knotted_penis low-angle_view male mammal multicolored_body multicolored_fur musclegut muscular muscular_male nipples nude penis pink_glans pink_nose pink_penis precum pubes school sex_education sheath solo standing subtitled table teacher text tuft two_tone_body two_tone_fur whiteboard