Yes indeed. Of course, it depends on the age of your sister, but I guess you implied this exact thing, because if you implied gender- it's a big no-no. And I can recommend to you some games you should share with your sister, take a look www.manamonster.com/hair-games , and I hope it helps.
She enjoyed the games from this website. So thank you, kind stranger. This is a good suggestion and a good reply. I wonder why no one else recommends anything though.