Rule 34 Dev - 2010 2boys 2d 2d_(artwork) 5:4_aspect_ratio abs age_difference animal_genitalia animal_penis anus ass bad_parenting blush bodily_fluids canid canine canine_penis condom crying cub darkgoose dominant duo english_text erection father father_and_child father_and_son flaccid foreskin fox furry furry_with_furry genital_fluids genitals incest knot larger_male lightning lying male male_focus mammal multiple_boys nipples nude older_male on_back original parent parent_and_child penis precum sexual_barrier_device size_difference smaller_male son tears testicles text watermark yaoi younger younger_male|2350150835