1.   Her eyes widened as though she were shocked at herself.

2.   Her eyes widened in pretended astonishment.

3.   Her eyes widened, glowing at the half naked girl beside her.

4.   His eyes widened in shock.

5.   His frightened eyes widened, straining to live.

6.   The grey eyes widened in mock surprise.

7.   His eyes widened as he spoke the words.

8.   His eyes widened in astonishment.

9.   She smiled radiantly and allowed her eyes to widen slightly.