Here is a good cuckold blog I just discovered. I know a lot of masturbators, including myself, often have cuckold fantasies. 

…  he said his wife was about to go spend the weekend with a fuck buddy and that he wanted some pussy before she went. She told him no and that her boyfriend had specificaly requested that she not fuck her husband prior to their visit. In this case it was a direct request from the boyfriend and one that the wife also very much agreed with. She also told him it would not be right to visit the boyfriend with a freshly used pussy and besides she wanted to save it for him.

My wife has told me that when she meets a guy, he almost certainly wants to know if she has "gotten any lately." We have discussed the reasons behind this and we both have come to the conclusion that even though a guy is fucking another man’s wife he wants her pussy all to himself. …

Now it just so happens that my cock has not been in her pussy since August 16th and even then I did not cum in her I just put it in her. She has had several orgasms from me by mouth but she has made no attempt to fuck me nor has she asked for my cock in her pussy. I remember the day (see the August 4th post) when she told me that my mouth feels better……

cuckold husband: No Trespassing????