Sometimes, even if you have a regular and active sex life, it is a lot of fun to talk dirty to your partner over the phone. Whether you talk about what you did last night, what you want to do to her this weekend (or what you want her to do to you) or whether you just weave a fantasy, talking on the phone has an entirely different sexual dynamic than talking in person. If you or your girlfriend is shy, you also might find it easier to find your sexual tongue on the phone than face to face. Even people who live together find talking about sex on the phone feels totally different than talking together in person.

A lunchtime call from the office can lead to a "quickie" over the phone to make the rest of the day go by a little faster. And for most people, telling their deepest sexual fantasies comes much more easily when they cannot see the person they are talking to.  That is probably the reason so many dollars are spent on commercial phone sex. The difference here is that you are telling a person you care about, and that can make your fantasies come to life. Talking on the phone often somehow feels more intimate than talking in person.  It also leaves one hand free if you should happen to find that all that talk makes you want to masturbate. You can tell your fantasy in a present tense as if you were describing something that was happening at that minute.  "I am taking off your bra. Your nipples stand up as I suck on them".  That way, your partner can take over from time to time "It feels wonderful when you suck on them. Don't stop".