Nathan raised an eyebrow used to this reaction by now. After all incest had a bad rap in the press back home but here Nathan could have cared less what someone like Niki thought.
"Oh relax it's consenual and yes I waited until he was 21 to do anything," Nathan said with an eyeroll, "with a family as messed up as ours I'm lucky to have Peter. Love is not a word in the Petrelli family vocabuarly,"
Nathan flew rather than walked over to Niki and held out his hand. "You and your sister flew over Red Rock in a helecopter once at least you told me that when I asked you if you ever wanted to fly."