See the variations in form here, from the Oxford Book of Sonnets, and this couplet sonnet, “The Insusceptibles” by Adrienne Rich.

Then the long sunlight lying on the sea
Fell, folded gold on gold; and slowly we
Took up our decks of cards, our parasols,
The picnic hamper and the sandblown shawls
And climbed the dunes in silence. There were two
Who lagged behind as lovers sometimes do,
And took a different road. For us the night
Was final, and by artificial light
We came indoors to sleep. No envy there
Of those who might be watching anywhere
The lusters of the summer dark, to trace
Some vagrant splinter blazing out of space.
No thought of them, save in a lower room
To leave a light for them when they should come.