Here is one where you can only catch a glimpse but it's such a tease starting around 1:35. At about 1:50 there is a back shot that is super sexy. If you have a great imagination at 1:55 she bends over petting her dog and can you imagine the shot from behind?
This gal is doing a try on and starting around 705 she is wearing a bodysuit and her jeans are unbuttoned. Finally around 817 she turns around. I don't think it's a thong bodysuit or maybe not one that is super thin in the back.