Carl's Jr. is apparently well-liked by very hot women. Either that, or they pay them insane amounts of cash to make it look like they do. Option two sounds about right here.
The takeaway here, as always, is that eating at Carl's Jr. will directly lead to very hot woman wanting to have sex with you. In fact, they will be so turned on the fact that you eat Carl's Jr., that they will likely smother themselves in BBQ sauce, do some crazy burger fettish sh*t, and give you the greatest blowjob ever experienced by the likes of humankind. You'll also have a threesome.