Crushes

Don't text him thats lame, call him or just askk in person

You already know he would go out with you, so theres no need to be nervous, 'cause the answer is almost certainly going to be a yes!
It's not like asking someone out is completely new to the world, millions of people have done it, so why would anyone be REALLY bothered if he did (for some strange reason) say no? :P