You are Mike Williams, a 13 year old 8th grader. You've recently been moved out of your twin sister Denise's room and into the attic due to her protests of needing a more private room to live in. Fuck that. She's just met new friends in high school and apparently now you're not trustworthy. Jokes on her though, the attic is a pretty good space and you have your own privacy too, you just need to clean a bit and organize and it should be a good room.
It wasn't that simple... There's a lot of things in the attic, and most of it look like relics of the past. You decide to just move it to one side of the attic and then live in the other. While moving a table, you notice your name on a metal filing cabinet. Heck, you see everyone in your family there. Thinking it's some old cabinet used for storing photos and stuff, you open yours and find out it's just filled with paper. BORING. Maybe it's important to you somehow? I guess it's nice to see more information about yourself so you grab one of the folders and take it out. "Memories." Guess that's an album. Looking through the pages though, they don't even have photos. They just have ultra specific descriptions of your memories. Heh, that's weird. All of this looks so real. Who's making these?
Putting the folder on the table you were carrying, you go and check out your older sister Janice's drawer and then find her memory folder. Thinking of all the possible blackmail you can use on her. You skim and scan the folders until you see a page that has very interesting text. You read of your sister's sexual masturbation experiences. While wearing a salacious two-piece bikini, she was slowly going up and down the shaft of an 8.5 inch long dildo. She was giving out soft but sudden moans and even rubbing her nipples every once in a while and then bender oh so slightly for the dildo to apply pressure on her sweet spot. According to the page, this was her favorite way to masturbate and she'd do it pretty frequently.
"MIIIIIIKE, IT'S TIME TO EAT!" You hear your mom's screams. You put the masturbation memory paper into the folder and went down to eat.