Vacations and staying overnight with friends... not sure what to do

A couple of my friends who I havent seen in a little while invited me to the city for a girls weekend to catch up and what not. The problem is that only one of them knows about my incontinence and as far as she knows I deal with poise pads. Im going to be with them all the time while were there so not only do I have to change my pullup a few times through out the day, but I have to wear a real diaper to bed. They are cool, very nice people but I just dont know what to do. I really want to go but in not sure how to deal with the protection/embarrassment issue. Any advice would be fantastic