if he had n't been so busy gawking at her perfectly pear-shaped ass , or if he had n't become mesmerized by the sassy way her hair teased the dimples above that perfectly pear-shaped ass , or if he had n't been drooling over the way her long-legged strides made that perfectly pear-shaped ass shake so jauntily , he might 've remembered jessie had warned him that he did n't know her as well as he thought he did .