rule 34 2019 anthro balls big balls bound chest tuft disembodied hand erection fangs felid finger in mouth fondling foreskin foreskin pull full body fur group holding balls humanoid penis kneeling koorivlf machairodontine male male only mammal muscular muscular male nude open mouth partially retracted foreskin penis precum sabertooth featurecat signature simple background smilodon solo focus stripes teeth thick penis tuft uncut vein veiny penis 3074604