So here's the thing. I need some advice man because I'm terrible with women.
We been going back and forth all day today and we both already letting it be known we feeling each other. I'm just trying to have some fun. Nothing too serious. Should I just ask her out for drinks?
uhhhh yeah, sounds like she would be down to just send her address. If you want to be smoother or sexier, and feel it out say "when am I seeing you"
if you want to be really direct, just ask her over to your place.
if you want to be the most conservative, ask her out for a drink, somewhere upscale/nice hotel close to your house, but STOP going back and forth.
She asked for you number, and is blatantly sexually flirting with you, it doesn't get more explicit.