16-18, say, I used to have erections so vigorous that it pointed right towards the sky if I was standing, hard as a piece of stone, to the point sometimes it was lightly hurting for its tension. Also, if I were very horny, it didn't lower his magnitude between the first cumshots. No rest needed between them. In the major part of porn videos I saw, the dicks were not as straight/energetic as mine. I was proud 
Now I notice it's not as performing as then. Back then it was even too much, now I think it's lightly below average: when business is required, it gets straight, but many times not to the point I wished it to be. I'm just 25 so I didn't expect it to low its capabilities so early.
Is this physiological? What about you?
An hypotheses of mine is that this is due to the lack of a partner there in the flesh. Maybe ordinary stuff doesn't excite me anymore. In fact I remind you I'm still a virgin (I regret I never used my thing in its golden age! T_T). The reason why I suggest this is because when I see a real woman next to me who excites me for real, then something in my pants moves even more than I wished it to. So still there's hope.
