"I just met your twin!"
"The most random thing just happened to me!"
"In a really weird headspace right now"
"Stop thinking about me"
"Hey Amy [a girls name that ISN'T hers but would be close in phonebook] great to hear from you! Yeah I can do Friday but you gotta keep you hands off me in the middle of the club this time, naughty!

"
Use that last one only if you're really losing momentum and you think you might get ljbfed, DON'T if you think you might have given off too much of a player vibe, OBVIOUSLY.
Basically the idea is to throw something a little random out there that piques her curiosity. Then when she gets back to you with "omg really what happened?" or something then give her a call, time constraint, DHV story about the thing you said (doesn't necessarily have to be about the exact message), then set up a day2.