The Overflowing Bra

I really liked it. I actually felt what the characters were feeling. Let there be more.

keep'em coming

I really enjoyed this story and I hope you continue it. 

I love how you made each character a unique person. Keep writing more please.

VERY enjoyable.  Please write more.
It is rare and wonderful thing to find somebody with an imagination as interesting as yours.

Really like all your stories, please keep them coming! 

Very nice.  Right to my favorites folder.
The only objection I had was the believability of the characters' attitudes, especially the sister's.  Hard to believe that she would jump in so eagerly, and be so interested in her brother, without ANY mind alteration being done.  Even the main character kept realizing that things kept happening as if he'd applied mental changes, even though he hadn't.

I liked the general idea; it's hard to be "new" with Master PC stories, although they remain my favorite.
It did get a little confused and jumbled about half-way through.

Very nice, PLEASE keep'em coming

Good story. please write more

I really liked your previous story and I know from its download count that the site did as well.  This one shares several similarities: incest, she-males, infrequent typos, and kind of mushy sentence structure.  
This story starts comprehensible enough.  A tight summary of the two character's plight.  The introduction of a body alteration mainstay, the Master PC.  The first onstage transformation of Alex to Alexis, both enjoyable and comprehensible.  Some of the sentences flowed real well: "pushing her breasts together as it mended then shrank into a sexy top, tied in the front in a cute bow. Her shorts and panties seemed to melt into the pink bottoms, pulling tight to her large rear."  You utilized the term, under boob, which although I had never seen understood real well and will make sure to use it in the future.    
But it seemed as soon as the sister was introduced things got confusing.  Things sped up.  Things began to feel repetitive as I realized that we weren't going to leave the room and have these characters be exposed to surprise, embarrassment, or domination.  What got me about your last story is the brother and their friends seemed more surprised by the changes i.e. spoiler alert: the brother's clit growing into a cock mid-suck or the sister and her friend hiding as the brother surprised his friend at the door.  None of the characters in this story were ticked or bothered by what was happening to them as they changed.  Don't get me wrong.  I am not calling for the stereotypical "rise in tension" in your story.  Emotions are erotic; this is something I am only now discovering.  Without complaints / agitations / motives of their own, these characters and their changes fall too easily into the drama of your last story, which seemed to work better because the sister and brother were slightly devious.  
You had me going when the source of the Master PC was the cousin.  I suspected she had sabotaged the program to alter first our main character's mind then his friend.   Keep in mind these disputes rose only after one read.  I'm sure it will ripen with age.  Can't wait to see Part Two!