Preface:
Puberty is a tough time in every human's life. Boy or Girl, Boobs or Testicles, Pussy or Dick, it doesn't matter. Every boy and girl in the world that gets to the age of around 12 starts having new feelings that will not leave them until possibly in their mid 20s. All this of course applies to the people of Hawkins, Indiana where even otherworldly monsters can't stop the human body from growing unless they kill the host of the parts.
Some kids are very knowledgeable when the time comes while some have no idea why their body is changing. The latter of which is Will Byers. Will has been through some serious pain and suffering since he entered the Upside-Down and this story takes place after season 2 so as far as we know, no remnants of beings from the Upside-Down reign within his body. Yet you can never be sure.
Chapter 1
It was a month after the Snowball Dance, everyone felt like the town of Hawkins was finally out of harm's way of the monsters from the other world, but all who knew of the events that had unfolded the past two years knew to be on edge for a situation may arise once again. The number one person who was always terrified of a possible attack was Will Byers.
Will, with scars in his mind of running away from evil beings, not being able to talk to anyone, being taken over by a giant monster that he had somehow not seen in his first journey to the Upside-Down, always was on edge of anything superstitious especially around him.
His mom and Hopper never really got off on the right foot when they started dating for real, the pairing seemed so right at the time, but it diminished. With Bob dead, Joyce Byers never really wanted to date again, at least not with someone who is innocent. She does not want to draw more people into the mess that is the Upside-Down.
On the other hand, Jonathan and Nancy were still going strong. Their neutral attraction was ultimately real and as they were in their late teens, Joyce let them be alone in Jonathan's room from time to time, yet they both were not interested in sex. Ever since that night at the conspiracy detective's house where they finally confessed their true love, they almost did the dirty business, but they refrained. When Steve basically almost raped Nancy leaving Barbara to be outside by the pool where she ultimately met her demise, Nancy never wanted to have sex, at least not yet. The slight superstition that someone she knows will die when she has (or almost has) sex turned her off. Jonathan, being a person with decent morals, honored her lack of drive yet was still happy that they would make out at least 3 times a week, and that is low-balling it.
One day, Nancy and Jonathan were having their regular roll-around-the-bed makeout session. It was getting pretty sweaty between the two but the hormones were rising to high peaks. During their session, they would usually close the door to Jonathan's room as they don't want the others to see them, but today Will and Joyce were out of the house running errands so they decided to say "Fuck it" and left the door open. It was totally not because Jonathan did not want to close the door because he just wanted to get to the business, totally not
What did not come to mind was when Joyce had picked Will up from the arcade and dropped him off at the house. Joyce still had a few errands to run but Will called from the arcade payphone to Joyce's work saying that his friends had to go home for various reasons leaving him alone.
Will walked into the house, they had cleaned up the house, keeping the map of the veins in a few boxes next to the Christmas lights. It was their reserve for if the monsters came back. Will walked to the fridge, grabbing a Can of Pepsi Soda and starting to walk to his room. Will had heard a few pounds in the past from the make-out session in the next room over, but today he heard few words that got his attention.
"Is that it Jonathan? You can't go for another?" Nancy said in her sweat-drenched clothing. Nancy's hair was in a fritz standing every which way.
Will look at where Jonathan's room was and he saw the door was open. Wide-Open. He was intrigued by what was going on in that room, but he didn't want to be seen. All the couples at his middle school liked being private about their relationship when they were with their other, When they weren't with their other is another story. Will thought that Jonathan would get mad if he saw them doing whatever they did in that room. It was both convenient and inconvenient that when they were talking about sex-ed in school, Will was lost in the Upside-Down. He was in the blurry mist of the upside down that now causes a blurry mist into how the human genital anatomy works. About all Will knew was that he was to not show his penis to any person outside of family, and even then, that is only in an emergency (like if they call a tornado siren while he is showering, but even then he has a towel, okay, it's a weird idea).
The penis to Will was a device meant for ejecting liquid waste from his body. Not anything else. Yet sometimes, weird things would happen. Will being 13 is at the middle of the beginning of Puberty, his voice still high but dropping slowly, hair starting to grow all over the place, none on the face yet, but it is early days, and every so often his penis would grow big for unknown reasons to him, usually it only stayed hard for a minute at most and while he was worried about it, it wasn't pressing him. At least at this point.
Will decided to move a bit closer to the door to see what Jonathan and Nancy were doing in the room. He came up to the the outer edge of the door next to the wall, not in the view of Jonathan or Nancy. The two lovers were in a love trance where sound was basically a nothing to them. Will never closed the door loudly in fear that it would tell evil beings where he was. Every so often Jonathan would peak at the door, and he always saw nothing out there and he starting to get back into the third makeout session of that day.
"Kiss me you dumbass" Nancy said in a naughtily sexy tone. The sounds came soon after, grunts and sounds of kisses. In Will's younger life, his classes found mouth kissing to be a bit gross but as they all grew up they found that it was just part of love. Will was never really that disturbed by kisses in the first place, and as he heard them moving he decided he would take a peek. Slowly Will moved his hands against the door and moved his head sideways on the door to eye level.
He watched as they rolled around on the bed in their sweaty clothing kissing each other not only on the mouth but on the cheeks and basically the entire face. Both of the two lovebirds were fully clothed and there was no indication that anything more than making-out had taken place.
Seeing all this was enough to make Will freak out slightly. Not because of what he saw in the room, but because of what happened to his lower section. A decent tent at his age was visible in his jeans. This made Will freak out and quickly run past the room at the exact right time that no one was looking. Will had gotten away.