Is it safe for me...

aneros_user43664,

I too have had a vasectomy and I don't believe that has affected my ability to enjoy my Aneros models in any way, including 'milking' actions. There is certainly a physical effect from a thorough 'milking'. In some ways it is like the refractory period following a traditional O but it is usually longer lasting. I think this is perfectly normal and safe in your practice. As far as the sperm cells go I don't think they are being dispersed into your abdominal cavity, the sperm stay in the testes, but are broken down and reabsorbed by the body after they die. From Wikipedia - Vasectomy -

When the vasectomy is complete, sperm cannot exit the body through the penis. Sperm are still produced by the testicles, but they are broken down and absorbed by the body. Much fluid content is absorbed by membranes in the epididymis, and much solid content is broken down by the responding macrophages and re-absorbed via the blood stream. Sperm is matured in the epididymis for about a month once it leaves the testicles. After vasectomy, the membranes increase in size to absorb and store more fluid; this triggering of the immune system causes more macrophages to be recruited to break down and re-absorb more of the solid content. Within one year after a vasectomy, sixty to seventy percent of vasectomized men develop antisperm antibodies. In some cases, vasitis nodosa, a benign proliferation of the ductular epithelium, can also result. The buildup of sperm increases pressure in the vas deferens and epididymis. The entry of the sperm into the scrotum causes sperm granulomas to be formed by the body to contain and absorb the sperm which the body treats as a foreign substance.