Wanna f*** an old lady

I'm a 16 year old boy, and haven't yet lost my virginity but really want to. However I don't really want to do it with any girls my age. I'm really sexually attracted to older women. Like way older women too, like 60+. I watch elderly p*** and really enjoy it. I even snuck a peak at my friend's Grandma changing when I spent the night at their house. Is this weird and would it be ok for me to have s** with an old woman?