erpiaosn,
Not having your own place makes this more tricky than it needs to be, but it shouldn't be too difficult to see a girl again once you two have been intimate -- especially if you made her orgasm.
If you and the girl hooked up late at night, then you need to make sure you text her sometime the next morning with something warm. Something as simple as, "hey Jess, I had a great time with you last night. I hope you aren't too tired today
." If you hooked up mid-day, then maybe wait a few hours and send a similar text.
After that, you'll want to contact her again within 2-3 days to begin scheduling your next meetup. Waiting longer than this can cause her to go into auto-rejection OR think that you just wanted a one-night stand, so make sure to act within the 3-day window.
If you plan on keeping things casual, you'll probably want to attempt to schedule this meetup about a week from when you first slept with her so that way you give her the impression that you're (a) busy and (b) not rushing toward a serious relationship. Once you've scheduled your next meetup (while of course being warm and maybe slightly flirty while you do it), you can probably avoid having to contact her again until the day of your actual meetup to confirm. If she really likes you, she'll probably text you in between now and then, and that's completely fine. Just be warm and reply to her at your own convenience.
As far as not having your own place, I have never quite been in that scenario, at least while I was actively picking up women. At the very least, I had my own college dorm room. So I would definitely recommend getting your own room/place as soon as possible!
In the meantime, the best idea is to not make it a big deal. A good excuse for something like that is that you're just saving up some money so you can get your own place at some point in the near future, but you feel like you want to spend a bit more time saving up cash. Just make sure you sound relatively calm and confident about it when you talk to her, and then explain that you would still love to see her, and ask her if you could come over to her place instead. If she seems hesitant about her place (and there could be lots of reasons for it), then make sure not to get pushy here and just meet up with her somewhere relatively private so that you can shag her in your car. Car sex isn't ideal, but it's better than no sex! (And if she continues to enjoy you AND the [hopefully orgasmic] sex, she might make more of an effort to find a way to have you come to her place so she can continue to see you and have sex with you in a more comfortable, private scenario)
That's about the best advice I can give at the moment. There are other guys on here who don't have their own place, and they might be able to give you some tips on seeing girls regularly when you don't have your own spot.
Cheers,
Franco
