I knew a woman who rituously shared clothes with her teen and always bragged about them being the same size. Not sure she was having a MLC or not. But what was very clear is that she was deeply insecure about aging.
There are lots and lots of women who could fit in the their daughter's clothes. But just because you can doesn't mean you should or that it's a good look. In general people kind of felt sorry for her because she was trying so hard to be 17 again.
Me 41, H 47, M 15 yrs, S11, S13 BD 1: 11/4/14 we work on it; really I pretzel myself BD 2: 3/31/15 H goes down to "dorm room" 8/15: H back to MBR 10/15: H back in dorm room 1/18: H files, now divorced