When the finger slid inside, Corina's legs stiffened. It felt rather strange to her at first, and admittedly, it was uncomfortable. She winced in response, but tried to control her expression to not alarm her husband.
Alexander observed her expression. He knew he just needed to find one particular spot for her to warm up to the feeling. He moved his fingertips around, then curled his finger. When he saw her mouth open and her legs behind to squirm against gum again, he felt proud to have found the right area, as it wasn't something he had ever explored on himself, even though he had read about it in a book.
"Ah, it feels... really good," Corina panted. "How does it feel so good?"
"Corina," he growled her name, becoming overly aroused by the expression on her face, which had become twisted with pleasure. "I'm glad you enjoy this."