[ WP ] Two people discover a fountain of youth . The problem is that upon drinking the water you turn back into an infant . The two decide to take turns raising each other in order to live forever until one day one of them decides to break this agreement .

At the end I was n't sure what I was doing. 
 
 Was I really doing this for me anymore? I knew he needed me, but did he think I needed him too? 
 
 See, the problem with this fountain was n't just that you became an infant, it's that you also acted like one. Your brain developed just like a child's with your memories coming back at the same rate as you aged. So by the age of three you only ever remembered what your past lives remembered at that age, and so on. 
 
 By now it was getting complicated, though. Each lifetime added another layer of memories that made it harder to control, let alone nurture each other in our youths. Imagine a 5 year old with 500 years of experiences. 
 
 Now it was just habit. We'd each done this so many times, and every year we were explaining the situation to each other earlier than the last. By now he understood our arrangement by the age of 9, even though he would n't remember making it for another 16 years. 
 
 But now I was getting to that age, the one filled with regret. We both found the fountain at the same age, 25. When he first drank all I could do was take care of him. There was no getting back to civilization from all the way out there, we had to make do with just our surroundings. Once he reached 25 and I 50, I drank and he raised me.'Course I never thought once we first found this thing that I'd just be getting older afterwards, but that's life I guess. 
 
 Yes, the problem now was that every lifetime at about this age I started getting these doubts flooding back to me, all at once. Each year kindled the next, and by this cycle I was about ready to snap. 
 
 I think I knew this was going to be my last iteration, the body I'd die in. Once he hit 25 again I explained it to him and, well, try telling a 25 year old you've given up on youth. An so for the first time he drank again for the second time in a row. 
 
 But now I'm an old man. For the first time I live in only one consciousness and my mind is at ease. The only memories I have of these years are the one I'm making. 
 
 He drank again for the third time in a row, but by the next time he does it he'll have to find someone else to partner up with. I do n't think he'll live forever, though. I know one day he'll join me, and live the rest of his life the first time, for the last time. 
 

