Girl gave me number after WILD hook-up session at party... now?

Met this girl at a crazy party, spoke to her for about 10 minutes (she was drunk, not drop dead drunk, but nice and saucy) and then we started CRAZY hooking up for like 2 hours. people were giving me high-fives while i was mid-kiss etc., and i ended up taking her upstairs and looking for a room, which didn't work, so long story short, we ended up going to the third floor landing and laying down. (haha) so, again, long story short, we had some fun, and she ended up giving me her number at the end of the night. i texted her the next day to say hi, and she goes ha ha yeah last night was awesome, blah blah, and we smalltalked for a minute, then stopped the convo. I called her 2 days ago to ask her out to lunch, but no answer, so i left a message to that effect with an invitation to call me back, nothin yet, just facebook pokes... what should i do now? she's AWESOME (from the talking that we DID do) and i wanna get to know her better.