I have had sexual feelings for my step sister for over 20 years now she wants to go on a cruise with me she's already said she wouldnt want me changing in the room in front of her. should I still go if I still have those feelings?

don't go if you think you're going to jump her against her will. Also, she may hook up on the cruise. can you handle watching her hook up with a guy at a bar?

it is not incest to screw your step sister, btw.