Shot from the Stars by Sherry Stone

On a routine trip, Jade Cargill, an interplanetary transport pilot, attempted to land on a planet she believed to be her destination. That was a near fatal mistake as she was inexplicably shot out of the sky during her landing attempt. She survived the crash but discovered the planet, at least where her escape pod landed was deserted. With only a few days of survival rations, she realized her situation was very dire.

The air on the planet was breathable, but she'd need food and water in the heat of the planet during the day. Wandering the planet, she found fresh water and by night she could smell a wood fire and what seemed to be roasted meat. Carefully approaching the campfire, her attention focused on the unattended fire she didn't hear the persons behind her. Then grabbed and bound by six of the biggest half-dressed females she'd ever seen.

Held captive, she learned they had been looking for her. Their obvious intent was to do Jade much harm. For the rest of the night six of the biggest woman ever, stripped, bullied, and assaulted Jade until she was unconscious. She awoke alone on a beach, woozy from her experience. No sign of her captors, but through her hazy eyes, she spotted a tanned woman; her figure was athletic yet nimble. Not one of her captors, but maybe much worse.