She and I have always been really close and our moms out of town for work and i was thinking it might bad but who knows maybe we'll both have alot of fun, just hope she doesnt get pregnant like our aunt.
She will probably not agree with you. It wouldn't be much fun, even if she agreed with you. Most guys cannot even kiss their sister. Best to think of something else to do with your sister. Perhaps you can watch a movie together.
tell me you are joking man are you nuts this must stop now for both your sakes cause your sister is going to finish up pregnant and your going to finish up behind bars for a long time incest is a very serious crime think of both your lives ahead of you.