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1:1 abstract_background anthro anthro_on_anthro balls black_nipples breasts canid canine canis duo erection fellatio female fur genitals grin hair heart_symbol hi_res male male/female mammal nipples nude oral penile penis pink_body pink_fur raikou_ryo red_hair sex smile white_hair wolf yellow_body yellow_fur yelsarts_(artist)yuni_hermit