Heavenly Sword is the best option u got, even though it has that hack an slash elements, but due to the fact that its SixAxis based ur gonna hav 10x the fun. Another one is Folklore, its an rpg, great boss fights but it requires patience. Ratchet and Clank is a good game too, very explosive. But again Heavenly Sword is the best option.
You have have to think about what she likes. Think of anything you can think of and bridge it over to a videogame. Most young (hot) girls like rock music so Rock Band is easily going to be fun --and why I searched all stores to buy it. Yet my sister is weird and a casual gamer so she likes games like Locoroco, Burnout, Jak, Lumines, Spyro, Shadow of the Colossus.
Hey, from my experiences girls love Ratchet & Clank and other games that are fun and easy to pick up and play. I've also noticed that most girls want to go and play games like Resistance and Halo and all that stuff. All the girls I know always say "oh it's too hard" or something like "you guys will just kill me." (When playing multiplayer) I always just say, "so what you'll enjoy it" and usually they do. Also, I've noticed that to get a girl into a shooter game, make it a shotguns only game because then they have a better chance at first since those types are usually easier for beginners at first.
I would recommend Singstar! This is a party game not just for the two of you. If you have an eyetoy camera the humiliation will be complete. Fun, but humiliating. One advice; do not upload your performance while drunk:D
How bout Team Fortess 2, there are classes such as the medic, or the engeneer that doen't require to much accuracy its all support classes, and then they will try other classes. And Portal is very simple.
lol, none of the games out there are really gender favored, they game is as it is and whoever likes it regardless of gender they are will like it, so its best to just search through the whole ps3 library on gamespot and see what kinds of games are in interest to her, like an rpg or something, remember, it always depends on the person, not the gender