Theres nothing wrong with asking a guy out. If your planning on going with them as just friends go ahead and do it. The worst thing that could happen is for him to say no but hey no hard feelings you just wanted to go as friends. So on to the next one. Ask one of your best guy friends it will be a fun time and you wont have to stress. c:
aw, come on! don't destroy some young guys chance to ask you. i say if that guy hasn't come through with an invitation by 4 days, give it a go and ask him. maybe he just needs help with money? just be sure you are ready.