Freedom from responsibility, from self-control even.

The thought pounds through Magara Force as the high-powered executive runs through the night-dark Florida rainforest refuge. In her mind she becomes she-animal, a wild creature at home in the ripe and savage land, Tarzan's equal.

Then he joins her. Male and large, his shoes slapping the gravel make her think of heartbeats. She hears his quick breathing, feels the sweat rolling off him, his heat on her skin. The heat travels through her veins, flows into her skull, fingertips, belly, between her legs.
Destroy civilized-woman and let she-animal roar.

Lon Storms, a man just stripped of the control and power that has been his way of life, has his own needs—needs this woman will satisfy.
He'll take her hard and wild. She'll give as good as she gets, meeting him muscle for muscle and nerve for nerve, screaming out her climax so the night creatures fall silent. In his mind and body, his running partner becomes an earth creature. Unburdened by modern constraints, they'll mate—pure and simple.

Neither can comprehend the consequences.