Zach and Gray had always had a certain "connection" to each other. For Starters they were brothers which SHOULD mean they have some sort of Family connection within each other. This is extended greatly when it is considered that they both had very similar paths growing up. If Zach did something when he was 9 Gray did that when he was 9 and so on so forth. Only in rare occasions did Gray do something Zach did in an earlier age than Zach did it. In fact, this experience he is going through is an example of that. Zach had no idea what Sex was until he was 12. Gray was 11. The one part of this that is different is that Gray was going to have more teaching than Zach did and in fact Zach is going to learn some new things too, and the one big thing that Zach knows. Gray has not even started puberty at any stage that he is aware of.
When Zach learned about sex at age 12 the first thing he did once he was home was measure his penis to see how big it actually was. 3.3 Inches Erect which was decent for being 12 (Average maximum is 4... Yes I actually did research...). At the time he knew it grew a little bit from when he was 10-11 from his daily showers but it was only minor. This led present day Zach to think Gray's penis would be what he had when he was 11.
He was pretty much right.
There Gray stood, Naked, No clothes on at all. His messy hair by his ears, his cute little face, unsure in emotion, the neck, the torso not terribly chubby but not super skinny by any means. He was just moderate in that department. The legs smooth, leading to the small feet that meant the end. Except, it wasn't the end. Zach looked at the most important part last.
Gray stood there with a 2.9 inch erection and two little testicles under it. It was basically what Zach had when he was 11.
The memories came flooding back. The hot water coming down from the spout of the shower. Covering his then 11 year old body. His hair quite similar but a little messier than it was currently. The water hitting his skin and going straight off the next second. Washing his torso, his legs, his feet, his hands, his... Penis.
It came to him.
Gray is almost a complete replica of him when he was 11. Not exact (Mainly because that's impossible because they were not born at the same time (4 year difference) so they obviously not twins).
This just made Zach more excited than he was before.
"Now the lesson can truly begin" Zach said with a gleam in his eye.
END OF CHAPTER 5