NEED HELP!...Plz help me! I need BIG TIME help!!?

Im 15 but i've NEVER asked out ANY guy. and this guy is lik really cute and me and him started talking for 2 weeks everyday! And turns out we hav alot in common! Every time i talk to him my heart skips a beat! I just want to kno how to ask him out. Lik what do i say?