My husband continually asks me to perform oral sex with him. Sperm is not only great tasting, but has only 10 calories a spoonful. It is nutritious and helps you to keep your figure and gives a great glow to the skin. Interestingly, a man knows this. His offer to you to perform oral sex with him is totally selfless.
Oral sex is extremely painful for a man.
This shows he loves you. Best thing to do is to thank him, buy him a nice, expensive present, and cook him a nice meal.