You're alone with you're sister in the middle of the RV.
From Create Your Own Story
You're in the middle of the RV sitting across from Heather, while you're mom has just went to the back of the RV to see Timmy and your dad and Jessie are sitting up front listening to music so loud, that they can't hear anything at all.
Heather is on her computer and is completely involved in it. She doesn't even notice when you're mom had left the room. You decide that the time had come to seduce you're sister.
You need to decide whether to: