Hi J441;
I agree with Cindy, your girlfriend should let the HRT do its magic. Last year after about 14 months on HRT, I asked my Doctor for a referral to a surgeon for Breast Augmentation , but after discussing matters with wiser heads, both other TS friends and CIS females, all advised me to wait until I had been on HRT for a whole yet. I am very glad I did as I am now a full B Cup heading for C and I would have looked quite out of place with breast implants.
I am not saying I will not get the,, just not yet, until my breast stop growing.
I find with a decent push up bra I now have a decent cleavage (and that can be highlighted even more with some highlighted in the cleavage.
Judith