as far as sexting goes, I wouldn't do a whole lot of it. especially sending dick pics. I'm not sure any girl finds a close up picture of your junk too sexy. one pic of your male body( that was a post on the website) and not much more. get it to where she has to see you and be in your presence for the sexual arousal and release. she needs that feeling from YOU not through the phone. as far as phone sex, if possible keep it brief. maybe a warm up or just to get her thinking about you the day before a date that evening for right before you go out. but don't rely too much on your phone if possible, because it's way sexier for both of you in person.
jake