Fun fact: Jenette Goldstein (Pvt. Vasquez) runs several bra stores in the Los Angeles area that cater to women with difficult-to-fit sizes. She is a total sweetheart. If you have a small group and contact her via email ahead of time she may be willing to make accommodations for your group. We had about four couples and she opened the store a bit early for our group. The women got fitting sessions (she personally fitted my wife) and she chatted with us for a bit afterward, including answering some questions about Aliens.
Please be respectful of her time and the fact that she's running a business, obviously. The bras are fairly expensive (but worth it, according to the women in our group) and they don't carry anything smaller than a D cup. So if you're not a potential customer, this is not the way to meet "Pvt. Vasquez!"