Make sure to keep "mixing things up". Alternate between the harder tickling and gentler tickling. Also, its usually best to not stay on a particular area for too long, so as not to have her lose sensitivity. Spreadeagle is my personal favorite position, and don't forget...there's face up, and face down. I've even heard some say that they are more sensitive when face down. Of course, it all depends on the person. Make sure you experiment with all areas, and I hope you remember MY favorite spot...the inner thighs...WWWWOOOOHHHHHOOOOOO LOL. Anyways, just some things to think about. Have fun, but play safe. You want her to come back for more in the future, right? LOL