rule 34 2022 5 fingers animal genitalia balls bottomless bottomless male bottomless taur bovid bovid taur bovine bovine taur casual erection casual exposure cattle cattle taur clothed clothing erection eyebrows fingers genitals half erect hooves horn line art looking at viewer male mammal mammal taur medial ring monochrome penis quadruped raised tail shmallow simple background solo standing tail tail tuft taur tongue tongue out topwear topwear only tuft unguligrade white background 9047325