Oh... just... you... nude.
From Create Your Own Story
At first your sister and her friend is slightly taken aback, not sure if you are being serious. Then, seeing the seriousness in your eyes, they look at each other and then slowly start to remove their clothes.
When they are done they both just stand there looking at you with lustful eyes, your sister can't help but to lick her lip in anticipation as she has lusted for this for so long.
You look at your sister and her friends petite naked bodies and feel the lust flushing over you.
Finding it hard to control yourself you decide to start with: