head back
Tilting the head backwards so that the area under the chin is visible to the viewer.
In normal circumstances, this is seen when looking up or facing up at the sky. In sexual circumstances, this may be seen during an orgasm.
Examples
Tilting the head backwards so that the area under the chin is visible to the viewer.
In normal circumstances, this is seen when looking up or facing up at the sky. In sexual circumstances, this may be seen during an orgasm.
