Her thighs opened slightly under his hand.

Her thighs opened like the petals of a flower.

Her thighs opened and she locked her ankles behind his knees.

'Her thighs open like a gate on a windy day.'

Her thighs opened wide as his gaze held hers, the dark depths shattered with feeling.

As she relaxed, her thighs opened without her willing it.

The sweet girl's thighs opened wider and wider and her feet separated.

Her thighs opened like a blossom at the merest touch of his hand.