The closest they could get is probably attending an event at akihabara to buy their dvd and merch in exchange for a handshake and photos. You can give them gifts and your phone number, but it won't gurantee they'll call or date you. Sora Aoi and Maria Ozawa exes may not be rich guys or in the industry, but they need to be able to accept their jobs and have a normal couple relationship.
Also, fans could wait for them to visit their country usually is Korea, China, Hk, Macau, Taiwan, and the Philippines, but mostly Taiwan. Sometimes America too, but usually in Las Vegas during the avn. Ocassionally, av idols come to Los Angeles to shoot with black guys for Dandy or Hawaii and Miami for some gravure beach shoots, but they're very secretive about that. Maria Ozawa and Yui Hatano visted Nyc for vacation before and only posted photos after they return to Japan, so they expect fans to give them privacy like normal people. that's why they wear sick mask, but also could be because of pollution and to conceal their makeupless and filterless appearances.
Taiwan seems to be more open to av idols and usually compared some av idols to their local celebrities because some of them look really similar to their celebrities counterparts, so are always invited to film game/casino ads in cosplay. Hatano and Mikami even went on their variety game shows.
