What can a girl ask her boyfriend about sex?

You mean, what can a girl ask her boyfriend when she wants to have phone sex with him?

If so, two ways work, depending on your boyfriend type:

1. Horny open-minded experimental sexual boyfriend: To him, say "I'd love to have phone sex with you; you turn me on so much when I hear your voice. " and he'll go for it.

2. Uptight, inexperienced, NOT too sensual boyfriend: To him, don't just hit him with your desires and put pressure, he might reject your suggestion as too "out there" for him. Rather warm him up to it over a SERIES of phone calls; never explicitly force him to ADMIT he likes phone sex. Meaning just try to get him on the phone close to bed time. Let him know you're in bed when talking to him. Or taking a bath. Or even just changing into a little nighty. He'll now have an image of you that you can work with. That's probably enough for the first call. Then do it again the next night, but don't end the conversation so soon, rather tell him how you miss him right then (in your bed, wearing your nighty, skin all soft and smooth after your bath. ). Third call, same thing, but then take it the next step by letting him know that his voice is so nice, and relaxing, and sexy when you have these regular conversations before bed. You just want it to go on and on. Eventually tell him what you WOULD want him to do to you if he was there. And there you go, the horse is out of the gate so to speak.

Maybe some other steps work better for your guy, it's not like I know how to turn him on. But YOU do. The point is, warm him up to it gradually, never force him to admit that he's getting turned on talking to you on the phone nightly while he pictures you in your little nighty. But you KNOW he is. Soon, you'll say some sexy stuff (don't lead with the four letter words, be gentle with uptight/sex negative boyfriend). And if he has a sex drive at all, he'll warm up to it.