Here's a realistic timetable for what you can expect to achieve when you are aroused:
The first change that you can expect and enjoy is longer lasting erections. You'll also start to notice an expansion in the width of your penis when erect.
Now it's starting to get exciting. You'll start to see more dramatic changes in your appearance. If you look in a mirror you'll be amazed. You'll also notice a further increase in your sexual stamina.
Month Three and Beyond
Now when you get an erection your penis looks and feels firmer, stronger and more rock solid than you ever dreamed possible.