"Ellie..." How far should I go?

"Please, I'll just touch it. I've never felt one before." Without waiting for an answer, she stepped closer and wrapped her hand around my hard cock.

"It's soft and hard all at the same time," she giggled with delight. "What do you do?" she asked, her voice filled with intense curiosity. Without taking my eyes off of her, I started slowly stroking my cock. She watched closely and then pushed my hand away.

"Hmmm, like this?" Ellie asked as she moved her hand up and down my cock imitating my previous movements.

"Exactly like that," I said, gritting my teeth at the intense pleasure...