She was making the most exquisite sounds and started to rock on his hand, so he figured he was probably doing something right. He didn't know everything about Erika's body - not yet - but he'd picked up on a few things in their last encounter. She loved to be touched and she enjoyed his mouth as well as his fingers pleasuring her.
He could work with that.
Chris felt the shudder go through her, so he repeated the move he'd just done, with the hope of making her shudder again. He stopped kissing her, dragged his tongue down her throat to her nipple and resumed suckling as he added another finger inside her.