My sister was given up for adoption at birth - 33 yrs ago. She is 2 years older than me, and I last year discovered her through a private investigator. She has since become a member of the family again. We spend all our spare time together, catching up on lost time. She is Smokin' Hot... looks like the actress Hillary Swank. The past 3 months we have been discussing our sexual experiences, fantacies and fetishes. She has confessed she finds me attractive, and has had naughty thoughts of me. We have shared many intimate embraces; which causes me to fantasize about her sexually. She wants me... I want her - and we will inevitably do it. Comments; Suggestions; Advice?