The fleshlight, I've been told, trains a guy to last longer. Is this true? Also, there are two ends of it. I've read reviews that say it can be cleaned with water easily after orgasm (aka coming/cumming). Is this true as well? I want to buy one for my husband... would like to train him to last longer and I would like for him to have a toy when I'm not around, as I have one for him when he's not around or has already come. Also, will this toy fit smaller guys?