I suppose the other option would be to do your own laundry if you need to, then it won't matter either way. Only you would know what happened, and it would be cleaned up regardless. It seems like wet dreams just happen irregardless of being lucid or not, so at some point the bridge of what to do about it has to be crossed. I do like the idea of using your intentions to prevent your body from doing it while you are dreaming. Definitely go with that.