Is it normal to have a fetish for mature asian women?

Lately I've been really attracted to older mature asian women. I'm not talking about women in their 30's or 40's I mean women in their 50's to 60's. It all started one day when I was home alone during one summer. Every trash day , am older asian woman comes down the block digging for recycling. I always see her digging through my can and I help her out once and awhile , giving her extra cans or bottles that might still be laying around the house. This one particular time she came into my house looking for bottles and cans, I was alone and have to say was a bit horny. When she was walking up my front steps all I can stare at was her tight ass. She went around the house collecting cans and bottles until her bag was full, she then was thanking me and telling me how I was a big help in her broken English . That's when I told her that I also needed help with something, at that moment I took her hand and placed it on my hard cock. She looked up at me and started smiling , she then began to rub it on her own as if she wanted it. It didn't take her that long to get me hard as a rock and that's when I leaned her up against my counter and fucked her until I came. After that moment I've just been into old asian women so is it normal to be after an experience like that?