Breast Expansion / Physical Transformation

[jlpicrdh]

I almost answered that it's what I'm here for, since I like it as much as the MC, but I went with the second answer instead. You shouldn't feel it's a necessity, especially not in every story, but if it makes sense and works with the story, I'm all for it. And not just BE either - anthro, gender, pretty much anything. And it doesn't have to be that extreme either. Simply a transformation of style - brunette to blonde, bimbo to goth, etc. The main thing is it should enhance/reflect the mental changes. In fact, if the mental control process is entertaining enough, and the physical and/or mental transformations are interesting enough and done well enough, then for me it doesn't even need an overtly sexual element.

[Daphne]

I'll admit that I have a serious fondness for gender transformations, too. How do people feel about those? Any other transformations besides breast expansion that are faves?

[sohta123]

Gender transformations are hot if used correctly. It's sometimes hot to see a chick grow a pair and then that work in the mind control element somehow. Not as fond of the guy gender transform unless he actually believes he's a girl.
Also, as much as this genre likes to dumb down I think it's almost more of a turn on to see a woman's intellect get to the point that it takes her over or pushes her buttons somehow.
And if you're looking at anthropomorphic transformations a stories with bovines are good as they generally include BE. 

[tods1976]

FWIW, a gender or anthropomorphic transformation would probably cause me to write off the issue, and possibly the series. (Hard to un-ring a bell every time you see the character.)

[Vidor]

I'll admit that I have a serious fondness for gender transformations, too.

Oh God no.

I agree with the poster above that BE is best when it stops at a size you might actually find on a human being, like an E cup.  I also like it better when the BE comes via diet and/or drugs (see the EMCSA story "Passion Grades") rather than magic.