Multiple orgasms?

Just want to put this out there and see how everyone else's sex lives are. So I started seeing a new guy & we started having sex quite regularly & he's extremely "well endowed". Anyways, I ALWAYS orgasm. Sometimes right away when he starts to eat me out, but usually multiple times. Ive heard people can have multiple orgasms but y'all, last night I came 20+ times. We were having sex for over an hour and half, it was insane. But is that normal for a girl to get off that many times & even just 30 seconds apart from each other sometimes or less?