Nice work man!
I just have a question, in this comic will never happening that one of them girls will be...pregnant? (especially heather,i love her) I just thinked about Breast Expansion and much cum, (and i'm i love about Breast Expansion and Pregnant/Belly Expansion) pregnancy make boobs more bigger, so, maybe can happening something in the story, but I understand if you don't like that thingh, like for me don't like GTS or some other expansion, its right if you dont like pregnancy ^_^
The mine is just a curiosity i have. Keep this work!