Okay, but I still don't really see how it connects. Most garments I've seen that cover the breasts like that connect to the lower portion in some way in order to help them stay taut (and therefore at least theoretically in place), but in the image that prompted my original question, she isn't wearing a lower portion. If the two ends we can see going behind her connect directly to each other, I feel like it wouldn't be taut, or at least not in that position. I have seen garments that are held taut by an attached buttplug, though, which is the only thing I can figure is holding this one—if both ends connect behind her to another strap attached to the plug, when the plug is inserted, assuming everything is adjusted to fit... Well, I don't think it's actually that, but it's all I can come up with.