pretty much what he said, dont freak out, and carefull in the corners if she has never been on a bike, also advise her to lean with you there is nothing worse than trying to take a corner and going straight on because your pillion is cacking them selves, go slow, but im sure if she has confidance issues with bikes then you wont be going 70MPH+ will you? i wouldnt she won t get back on, my mrs hates bikes anyway and just uses mine for "transport reasons" because she doesnt " see the point " of going for a ride out. . . .
love you if you see this baby