Millie

I think you should just go for it and ask. Be confidant, but don't act too self-secure, ya know? I think that if your best friend is the one who brought you two together, then she would definitely have no problem with you dating her. Also, if she's your friend, and your BEST friend, she should have no problem with what makes you happy anyway, as long as what makes you happy is good and safe, etc.