met a girl at a bar. we chatted. conversation got sexual rather quickly from her side, we exchanged numbers. next day she writes me. short small talk gets sexual again rather quickly from her side and i kinda make her get the gist that i am more of a LTR person or at least someone that enjoys dating someone with not only sex in mind. so she suggests we meet up soon for a drink. she comes over to my place a few days later. we talk. shes coming out of a 2yr relationship, broke up 4 months ago. when i ask her what her family name is, she makes a game out of it and refuses to tell me by throwing out common names and sort of lets me believe its one of them with a wink.
a few hrs in, the sexual energy that was building up (we started talking about sex and what we were both into at some point..we both have a rather kinky streak and i will leave it at that
) unloads and we start kissing, oral, and also things get rather kinky quickly, if you ask me, far far extremer than fucking her 
in the course of actions, that are going on for over an hour by now and it becomes clear rather quickly that we are a 100% sexual match, her ID falls out her pocket revealing that her family name was different than what she wanted to make be believe..we joke about it...things continue so in the end she basically is begging me to fuck her over and over again...and i tone things down slowly and refuse to fuck her 
we get dressed again and continue kissing and she leaves way after midnight although she needs to catch a flight to her 2 week holiday..on her way to her place she texts me from the cab saying "you are dangerous" with a wink..and tells me that i have to come over to her place next time...and again she becomes sexual rather quickly.
next day i wish her a nice flight, she thanks me and tells me she hopes to see me soon after her return.
a week has passed and she never initiated contact from her holiday destination.
i have no doubt that she will get in touch again when she returns and her behaviour makes it clear that she is primarily interested in sex with me. so the grand question: being a more ltr person that doesnt care much about sex with someone in a scenario that potentially isnt leading anywhere- what should i do?
to avoid misunderstandings: i am not emotionally invested at this stage, just interested in getting to know her with open end, not however for just fucking around cause its not my kinda thing.