Heron Lake Plateau Rivets and screws.

Soon they were coupling, Rye utterly forgotten. Towhee couldn't say how or why, just that this round was somehow way more pleasurable than her first. In fact, a tension began to build in her belly and a pleasant electricity tickled along the base of her spine. Then, abruptly, she was overwhelmed with a sensation unlike anything she'd ever experienced before. It was indescribable.

Her vision went white and all the tension went out of Towhee's muscles. She sank to the ground, dragging her partner with her, and just lay there, utterly blissed out. Some deep itch had been scratched and now all she wanted to do was nap. As a matter of fact, she rolled over as soon as she was able and promptly began to snore.