Cow Precum Collection - Edging Femdom Handjob

I own a farm of male cow slaves that I use for extracting precum from. I get top dollar for it. That is how I fund my luxurious lifestyle to get all my fur coats, boots, and jewelry. Today I have a new cow scheduled to be edged and milked - for only his precum. Cows are never allowed to cum, ever. They are kept locked up in chastity and only taken out for the agonizing precum extraction process.