I did some research on the web. There were very few straight sites and blogs that showcased straight men masturbating for women.
There are several forums that women have expressed a fetish for watching men rub one out. Enjoy.
After searching the web, I couldn't find a site that showcased pics and videos for women who like to watch men masturbate. This is intended for adults only. All in good fun I guess. Please, post comments and tell me what you think. firstname.lastname@example.org