After a few guesses... no one has the real correct answer.. Its a Nursing Cover. My very first time sewing it. Thanks to
Lydia who requested for it.

Front view

Back view. But it can be a reversible cover. Both side can be used.

A D-shape ring used to adjust the required tightness..

Tadaaaa... Mommy of the year awarded to
Neneth! the model.. hehehe.. hiding her 't*t".... is that for real??