Constance discovers Parkin is only half-dressed, and the physical strength of his body makes a strong impression on her.
Parkin senses Constance's attraction to him, and he's equally taken by her beauty; in time the two throw caution to the wind and give in to their mutual passion.
Constance blooms through her lovemaking with Parkin, and she finds his simple, rustic individualism is more to her taste than the life her husband has given her.
But as Constance embraces her love for Parkin, others become aware of their relationship.
Lady Chatterley was adapted from Lady Chatterley et l'Homme des Bois, the second of three versions Lawrence would publish of his best-known novel (it was published in English as John Thomas and Lady Jane).