Ultimate shoulder rides

I wanted to let you guys know something that me and my wife have been doing for a while now.  She knows I love to give shoulder rides to women and she's never been a big fan of receiving them.  Now since we've been married for 6 years she readily agrees to a shoulder ride or sometimes will initiate them on her own.  But since she knows I like to give them, she won't let me give another woman a ride.  I've also tried to get her to get a shoulder ride (either at a pool party or something like that) but she says she'll feel funny riding on someone else's shoulders.  For some reason I want to watch her get a shoulder ride but I'm not sure if it will ever happen.  So anyways what we do now is I'll ask her to tell me a story in which she received a shoulder ride and we'll do this while she is sitting on my shoulders.  She likes to do it because I enjoy them and since she used to be a lifeguard during summers in college, she's got a lot of shoulder ride or chicken fight stories.  I tell her all the time for a girl who didn't like shoulder rides, you certainly got a ton of them.  Some of the stories are great and I can relay them if you'd like.