He grins and his eyes flash devilishly.  "I do believe you haven't met me yet."  He bites at her neck and her shoulder, leaving little red teeth marks on the soft skin.  His hand guides her head so that her teeth are at the buttons on his shirt.  His other hand leaves her cock and he starts to rub it around her back, up her spine and down to grab her buttcheeks, running a finger lightly along the inside of her cute asscrack so that it brushes over her hole, and back up her spine again.