As a longtime cuckold who is never allowed to have any penetrative sex, I'm a firm believer in serving the superior Nubian God who's enjoying sex with my owner in as many different ways as possible, including financially. One arrangement that I've found works very well is for me to work full time and provide complete financial support for my owner and her boyfriend, so they don't have to work at all, and can relax, spend quality time together and take their anger out on me whenever they've had a stressful day and simply need to vent their frustration on my bare bottom with as much savagery as necessary to relieve their stress and anxiety.
In addition to paying the rent/mortgage and all the utilities, groceries and weekly expenses, I also take great pride in buying them both new shoes, to demonstrate my worship of their feet and toes. They enjoy a life of luxury and relaxation, while I work my pathetic little ass off to keep them happy and comfortable.