''I love when men who I know, or don't know, start putting fingers in my asshole, and then I get him hard,'' said Kim Anh, a 61-year-old first-timer who is from Thailand and now lives in the United States. ''And from there, I will control my hips, spread my cheeks and let him thrust his hard cock into my asshole. Delicious. I love it!'' Kim says that when a guy fucks her ass, she can feel it on her G-spot.