Is it normal that i have two "friends with benefits" at the same time?

OK, so I'm an 18 year old girl that goes to College (or whatever the USA equivalent to "that thing after high school" is - I live in Canada). And I have two friends-with-benefits.

I met the first one, whose name I will not tell, through a friend. He's 19. My friends describe him as the canadian "Taylor Lautner" 'cause he's actually really muscular and has a square jaw (plus he's of Native American descent so he has the same skin tone hahaa). He's really sweet and funny, but he's kinda shy and he's not forward at all. He's super romantic but when we're with other people he acts like a total prude.

Then there's Mr. #2. I met him at the country club, when my mom (yeah, I know) presented him to me. He's slightly older - 21. #2's actually the polar opposite of #1. He looks so different: he's also buff but much less (kinda like a "subtle muscle" type), and he's typically caucasian (like, pale-to-tanned skin, grey eyes, brown hair). 2 is much more forward and outspoken, and protective. He loves to cuddle even in public (he makes it known to people that he likes me), and always calls me "Dollface" or "Barbie" since I'm blond with green eyes (and he calls himself Ken when he does so).

I have active sex with both guys, but I've started having sex with #2 about 2-3 weeks before #1, even though I think I met both of them about a month ago. They seem to be aware of each other (and not to care).

I feel like I like both of their qualities, but sometimes I feel more calm and romantic (that's number 1), and sometimes more freaky (that's Zac). According to my friend, I try to create the perfect man by splitting "it" into two different guys. Which makes sense.

I wouldn't mind, but the reason I'm asking if it's normal, is because all my friends and theirs have been telling me they both wanna get more serious. I didn't believe them until this Christmas, #1 bought me a 4-day vacation at a spa resort, and #2 bought me a river of diamonds (necklace) with matching earings. I know they're both rich and can certainly afford it no problem, but it seems like a big gift for a friend-with-benefit...

Wow, sorry for the wall of text.