MDF,
Here is a description of the procedure that was used for her current implants.
Perhaps it provides some insights. She did tell me, though, hers are over-the-muscle.
"Breast Augmentation and PEBAM™ -- The Future of Breast Implant Surgery
In a move that revolutionizes breast implant surgery, Dr. XXXXX has merged endoscopy and minimally invasive surgery to redefine the entire procedure, leaving the patient with virtually minimal scars. The procedure involves making a mini-incision and creating and molding a pocket, into which he inserts a deflated saline breast implant. The desired amount of saline is inflated into the implant through tiny tubes.
After the filling is complete and the tubes removed, Dr. XXXXX closes the incision of which is done with an absorbable suture. The resultant scar is normally less than one centimeter in length which heals very well, and with the additional therapy of a silicone-based covering, is virtually unnoticeable.
Of particular note with this surgery are (1) the incisions are one-third of an inch, not the usual three centimeters (more than one inch); (2) the smaller the incision, the quicker the healing and the less the tension; (3) placement of the incision under the breast or in the axilla instead of through the belly button allows a smaller scar in less visible positions on the body; and (4) placement of the saline implant under the muscle, allowing the most optimal cosmetic effect."
ps, does she have a big ass as well?
In the meantime, perhaps this pic provides a better perspective
photo (c) lionheart