In my experience so far, a girl only seems to be open to sex if she's really into me. I haven't been able to hook up with girls that seem kinda sorta interested; they usually keep texting me back and agree to one or two platonic dates, but when I invite them over, they lose interest. I've been good at the initial attraction and getting numbers, but am unable to seal the deal unless the girl is really into me. Have you guys been able to seal the deal with girls that respond and seem sort of interested, but not 100% into you?