I have EXACTLY the same problem.  My cure was a bit radical, and it might upset some here, but what I found that worked was to go to crummy "celebrity" sites and look at photos of skinny well-known women - Lohan, Duff etc.  After being shocked, saddened and deeply turned-off by the sight of women wrecking their bodies for the sake of fashion( :'(), I would then return to photos of Ms Zaremba, Ms Dettwiller, Ms Waugaman and, with the scales fallen from my eyes, I saw them in as I did when, a few months ago, I first found femuscle- that is to say as glorious, full, 3D women who are revelling in the wonder of their bodies and what they can do, instead of hating them and trying to occupy less and less space in an attempt to "2D" themselves.
Not only is it gratifying from the point of view of a femuscle lover, but it also restors the faith of this feminist-inclined guy (yes, really) that there are women out there who could provide fantastic role-models to vulnerable teenage girls if only they were seen more in the mainstream media.  If you had a 16-year-old daughter, guys, who would you prefer her to look-up to physique-wise:  Lindsay bloody Lohan or Val Waugaman?

Sorry for not answering the question - for me breasts aren't particularly important - I didn't answer this question earlier in my response because there was something I wanted to say more.  Now that I've said it, I feel much better.

Strangely, I'm not even especially into FMG, lthough I can see the attraction.   I'm mostly into buff women, simple as that.

I gotta go with the majority on this one.  While I like BE to happen along with FMG, I do feel there is a practical limit beyond which it ceases to be sexy for me.  Generally speaking, it is much easier for BE to be sexy in written word than in actual illustrations, too- probably because the mind is much more flexible than the eye. 

In terms of illustration, I guess my ideal for sexy women would be tigersan's Pam gallery (check it out on his FemPower website)- she isn't the largest of the women he's built, either in muscles or in boobs, but she is among the most balanced, and I think that must be the key.

I agree with most everyone else here.  When the woman becomes incapacitated due to her enlarging breasts, things have gone too far.  I love large breasts as much as the next person, especially when it comes to BE & FMG (DCM's Sonya what if comes to mind immediately - followed by a few seconds of daydreaming), but it has to leave the woman able to function.