Department Store without changing room
 

Year's ago there was a legendary discount section of a department store in Boston called Filene's Basement. There were no changing rooms there but had high discounts on fashionable dresses etc. If you went there when secretaries on lunch during the work week, you could see twentysomething women in their undies trying on clothes!

I remember it well at Downtown Crossing.

We had one of those in [another part of the country]. Wow, that feels like lifetimes ago.

Yup!
 

We had one a few miles south of you at the mall in Warwick, Rhode Island, too. Dressing room was made of a series of curtains hanging in a back corner. (Even the mall is gone, now. :( )

This link shows some ladies in undies

https://youtu.be/aPJB7WRleXo

Sexy Clothes Boutique
 

My wife and I were looking for some sexy ouutfits for her and went to a boutique. There were about 10 or so other people in the store. Perhaps there were about 4 single women and approximately 3 couples. I picked out about 4 items for my wife to try on. They included 2 nighties and 2 night gowns. The nighties were both one piece and the gowns were two piece with both having g-strings. We began to look at around for a dressing room and found none. Then we saw other people stripping down on the sales room floor to try on their clothing selections. My wife said, "What the hell," and stripped off totally naked. She proceeded to try on the nighties first. They were both see-thru. She then turned around for me to evaluate. One of the other guys there was watching and said that he preferred the red one. I agreed, and she put that one aside to purchase. I have to admit that my attention was somewhat affected while I watched the other women stripping naked and trying on very sexy clothing. Then my wife began trying on the gowns. She couldn't wear the g-strings, because of hygiene concerns, so she put on the gowns with no coverage below the waist. Both gowns tied at the neck with the remainder of the front open to the floor. She turned rapidly for my review with the front swinging wide open and her pussy there for all to readily see. I had too admit that this was the most erotic store that I had ever been to. As a finale, I had pulled up a fence net body stocking that had no crouch. My wife asked the clerk if she could try that item on. The clerk said that she could. My wife then inquired about the hygiene component. The clerk responded that since there was no crouch in the item, it would not be a problem. Then my wife put it on and spread her leg to the side for me to see her bare crouch. She then said,"Well, I bet the back view is also important to you." I agreed as she grabbed hold of a low clothing rack and bent over from the waist with her glistenning pussy aiming toward the shop's ceiling. All the guys in the store got a bird's eye view, as did most of the women. I immediately O.K.ed the red nightie, white fur gown and fence net crotchless body stocking for purchase. I then asked my wife if she wanted to try on more items. She replied, "You just want to stick around and watch the other women stripping." I just grinned and had to admit that there was a real degree of truth in what she said. I promise though,I will bring my wife back soon for more goods.

In Germany
 

Until 2020, we had a shop where you could see into the cubicles on the ground floor from the upper floor. Because of the angle, you could only see the face of very small women, but underneath you could see everything. Especially when they were trying on lingerie.

You would then stand between the racks of clothes in the sports department and every time I was there with a friend, there would be men standing there, peering over the para-pet from the protection of the jogging suits and I would join them.

Unfortunately the shop closed for Corona.