Basic Trope: Nerdy characters are depicted as sex-obsessed, lecherous, or having deviant sexual preferences.
- Straight: Melvin takes nude photos of Cheryl the cheerleader and tries to steal her underwear.
- Exaggerated:
- Melvin zaps Cheryl and the rest of the cheer team with The Nudifier, a device that he invented himself.
- In Melvin's eyes, nobody's safe from his sexual advances.
- Downplayed: Melvin has a crush on Cheryl, but his eyes always linger in the wrong places when he watches her practice.
- Justified: Nearly everyone Melvin's age has some form of sex drive. Why should he be an exception?
- Subverted: Melvin takes nude photos of Cheryl and tries to steal her underwear... because if he doesn't, Barbaric Bully Jerk Jock Dash Yeong is going to put him in the hospital.
- Double Subverted: Before Melvin brings the photographs to Dash, he uploads them to his online Porn Stash.
- Inverted:
- Melvin is normally too engrossed in his studies to think about sex, and is portrayed as more "innocent" than his classmates.
- Melvin is the one who is constantly creeped on due to being considered effeminate and cute, and he has to avoid getting hit on (or worse, raped) by Dash. He also has to avoid a jealous Cheryl for trying to take Dash.
- Gender Inverted: Every morning Melanie helps herself to anime beefcake.
- Parodied:
- Melvin takes on so much extra homework that it's portrayed like a fetish — whenever he gets another textbook added to the pile, his glasses fog up, and he begins to drool with a Luminescent Blush.
- Melvin is often turned down by many of his peers despite his cute Pretty Boy-esque overall appearance. Even if someone decides to give him some pity sex, Melvin's invariably taking the bottom role.
- Averted: Melvin is no more or less perverted than anybody else at Troperton High School.
- Defied:
- Melvin is expelled or arrested.
- Lovable Jock Chad Brannigan kicks the crap out of Melvin.
- Melvin resolves to treat women with basic respect and not be a pervert.
- The school's nerd clique doesn't tolerate this behavior and kicks Melvin out
- Zig-Zagged: Melvin's libido tends to oscillate.
- Enforced: "We have some real creeps in our fandom. Let's call them out."
- Lampshaded: ???
- Discussed: ???
- Conversed: ???
- Invoked: ???
- Exploited: The Vamp shows up dressed as a Ms. Fanservice character from Melvin's favorite show in order to manipulate him.
- Played for Laughs:
- There's a Running Gag where Melvin can manage to find a perverted meaning in anything, no matter how innocuous, through a combination of technical jargon and good old Insane Troll Logic.
- Melvin is this, but he's instead trying to creep on boys like Chad and Dash. Depending on their orientation, they might either do two things: If they're straight, beat Melvin up for being an overall creep trying to essentially rape them. If they're gay, give Melvin a little bit of pity sex and try to satiate his lustful tendencies.
- Played for Drama: Melvin sinks into a deep depression because his high sex drive and general unpopularity among his peers means he's not going to be hooking up anytime soon.
- Played for Horror: The nerds attempt to gang-rape Cheryl.
- Implied: Melvin can't stop himself from laughing when he overhears an Innocent Innuendo, much to the confusion of everyone else in the room.
