Short question: How much texting/contact would you say is necessary to keep a girl on ice between weekends after you have already hooked up/had sex twice?

Background/context:

Met a girl 2.5 weeks ago on a Saturday night at a bar. We hit it off after a night of HEAVY drinking and she invites me back to her place where we fool around literally until the sun comes up. We text back and forth intermittently throughout the week and eventually she booty calls me this past Friday night with a text asking me to come over around 1am. I meet at her place and we have sex and fool around again until very late. The next morning I make kind of a sudden, awkward exit due to a vicious hangover while she's getting ready for work. I am able to recover later via a texting conversation that goes surprisingly well (we apparently have more in common than I originally figured). I'm leaving the country for a couple weeks, and I kind of want to keep her as a fuck buddy upon my return, so I was hoping to get in one last meetup with her this coming weekend. I don't want to appear as desperate by trying to make plans with her this early in the week, but I figured I can't afford to have her be "too busy" to meet up if I wait for a last minute rendezvous. Any thoughts?

Personally i like to set up weekend plans on Wednesdays and Thursdays. It works out not being too soon to think about the weekend, but not too last minute to where she already has plans. Sometimes you just can't help it and she is busy with plans that were set a month ago so you'll have to work it out with her. I think you might be okay, because she called you at 1 in the morning to have a session so you could end up going over there early in the morning again. No ones busy at 1 in the morning, well except for you two.

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PUSSY, MONEY, WEED.