"Let's do this. Now. I've wanted you since we first met, years ago," said Carol, reaching out to touch him. It no longer felt wrong.

"I've always wanted you, too," he whispered.

He undressed her slowly. She lay back and opened her legs, showing him her molten core.

He caressed her gently, then hovered over her, his hands holding hers down on the bed. He hesitated, poised at her threshold.

"Are you sure you're okay with this?" he asked, glancing aside.

Kate smiled.  She wrapped her hand around her husband and steered him inside her grateful sister.