It's a tough call. I've never gone without sex in my M (until after S) or in any relationship before or after the M, and I attribute a lot of that to asking for what I want. I can't remember which book they discuss that in, NMMNG maybe? But when I read it I just thought "yeah I've never had a problem with that!" Not that I'm pushy about it, I just make my desires clear and if it works out then great, if not I don't get all passive/aggressive about it but rather just talk about "why" and discuss other possible options or setting a different day. I don't just drop it like a bomb though, I'm always making sexy comments with my wife/girlfriend- telling them what I find sexy about them, talking about what I'd like to do right now even though I'm at work, asking them what they are thinking about, what I'd like to see them wearing, stuff like that. And sending pics back and forth. Right now on my phone I have... let me check... wow 684 not-safe-for-work pics of my girlfriend in a hidden folder. Why? Because we are always engaging in romantic, sexy discussions, especially when we're not around each other for a while. It keeps things spicy. I think the problem with getting stuck in a sexless situation is it becomes the "norm" and then it becomes very difficult to break out of that rut.
I wouldn't go the "dream" angle, sounds too passive to me. Just tell her what you want. If you want sex then tell her. If she says she's not ready then try not to act like a puppy dog that didn't get a treat for begging, just ask her what her issues are with it and what you can do to alleviate that. Pick the right time though, maybe over a nice dinner.
