Doing NNN For Your Cute Cow GF [No Nut November Finale][Cow Girl][Human Male On Anthro Female]["Milking"][Wholesome][Loving][Gentle Femdom ----> Femsub][Le Big Nut]
This is becoming an increasingly common tactic on part of wives/bulls to ensure the cuck fulfills his role. In 90% of cases, the cage doesn't come off after this either because either the charity becomes permanent or the bulk knocks up the wife again.