The feeling of their lips sliding across each other sent more tingles through her body.
Getting comfortable with the feeling, she reached up with her own hands and touched his face, then started trying to nibble at his lips. In response, he stilled his own motions and let her take over.
First, she nibbled at his lower lip, caressing it with her own, then his upper lip. Then, enjoying the sensation of their lips sliding against each other, she tried sliding her lips left and right across his own.
He returned to kissing her, and they began alternating, nibbling at each other's lips. Then, to her surprise, he opened his mouth wider and stuck his tongue out, touching her lips. The action was so sudden and unexpected that she jerked back.
"Too much?" he asked, concerned.
She thought about it and decided she didn't mind. It was just so unexpected.