I think I'm falling for him....

I met this guy n I've gone out with him a few times, we have such a great time together and he's so handsome.....so on the weekend we went out dancing and after that we couldn't help it we had sex and it was great!!! :) then all night we cuddled...so now he wants to spend more time together n I do too but I dnt know why I guess I'm just scared that I'm falling n love with him too fast but I can't help it :/ should I just relax n see what happens????