Well stop flirting with her and GET HER FEET! Mention the photos. Ask her if she got a professional pedicure. If she says yes, then ask her if it tickled. If she says she did it herself, make a statement about how she probably does it herself because she probably WAY too ticklish to let anyone else do it. If she says she's not ticklish, tell her you don't BELIEVE her and further investigation is required. If she's wearing flip-flops, tell her how annoying that sole-spanking sound must be and how people who make that sound should be punished....with a long foot tickling. If all else fails, tell her that you notice that she posts pics of her feet. Compliment them and ask her when she first realized that her feet were pretty....then say something like "there's always TWO sides to one coin. All that beauty usually comes at a HUGE price....I heard that the prettier a woman's feet are the more ticklish they are too...WOW! your feet must be HELLA sensitive! Get after it, Cousin! GET HER FEET! Pretty, Sexy Feet must NEVER go to waste!