I Need Help With The Translation

Some years back I (white guy) hooked up with a girl from Central America. We fucked like bunnies for 2 weeks while she was in Europe. I don't speak much Spanish and she does not speak English, so communication was difficult.
I gathered that she liked the sex because she kept writing me back asking if she should come and visit again.
I have a question. She kept screaming "que rico" when I was fucking her, but I don't know what it means. I tried Google Translate, but I think there is a meaning lost in translation.
Can somebody tell me what it means when a woman screams "que rico" during sex?