Kuniumi Maitake is tall, usually has a glow aura and good-looking and charming enough to get a legion of fangirls not long after he started teaching. (From “Lovely★Complex”)
Ms. French from the episode, “Teacher's Pet” has all the boys drooling over her. Including Xander. Turns out she's taking virgin boys home, mating with them, and biting off their heads. Because she's actually a giant praying mantis. (From “Buffy the Vampire Slayer”)
Elizabeth is this, especially when she needs to raise money at a school car wash. (From “Bad Teacher”)
Gerri Dandridge is a professor of history and art at a Bucharest college. Of course, she just uses this to lure in young male victims. (From “Fright Night 2: New Blood”)
Sam Lombardo is seen as one in-universe. A lot of female students are shown to have the hots for him. (From “Wild Things”)
Paige has an affair with the hunky student-teacher Matt in the season 4. Their relationship is portrayed as a completely normal and decent thing to do, except that school rules unfairly ban it. As Paige points out to him, he's only three years older than her. A girl who hates Paige discovers her secret and taunts her, but when the relationship is exposed, no kid in the entire school cares, even though Paige has plenty of enemies. Matt gets fired, and the two of them think this is a good thing since now they can be together in public. Then he suddenly moves away, in a scene that ends with Paige's classic line, “You're dumping me and giving me drugs?!” (From “Degrassi: TNG”)
Will Schuester is so good looking to the point where Rachel and Susie went completely nuts over him and even followed him home to cook and clean up for him. Of course, one must admit he doesn't make it easier for his students by singing sexy songs on stage with them and accepting to play a role in a musical that requires him to be completely shirtless. (From “Glee”)
Tommy Oliver. To his embarrassment, several of his female students are Teacher/Student Romance. Oy. (From “Power Rangers Dino Thunder”)
Ezra Fitz had a brief romantic relationship with Alison before she vanished, during which she lied about being older than she was. When he found out she was a high school minor, he stopped seeing her, though he became deeply obsessed with her disappearance. (From “Pretty Little Liars”)
Desiree Atkins becomes the new high school’s sex-ed teacher in the episode, “Heat.” She shows up wearing very little and puts on a sex-education video. Clark tries to pay attention, but he keeps glancing at Ms. Atkins. Suddenly, the projector screen bursts into flames. (From “Smallville”)
Ms. Lana Lockhart from “Fast Times at Buddy Cianci Junior High” becomes the new English teacher. Chris falls in loves with her immediately. She is very busty and all of her clothes show off her sizable cleavage where she's constantly pulling things out of. (From “Family Guy”)
The entire series dedicated to a relationship between a female teacher named Claire and her male student named Eric. However, it also follows by the devastating fallout once the relationship is revealed. (From “A Teacher”)
Donny Berger had an affair with his female teacher named Mary McGarricle back when he was in middle school. The affair resulted in a son. However, the incident isn't so much played for laughs as it is a victorious wish-fulfillment fantasy. (From “That’s My Boy”)
Pacey and his English teacher Miss Tamara Jacobs start having a secret affair in the first season. (From “Dawson’s Creek”)
The handsome, charming Mr. Crane takes over the class at Bayside High in “The Substitute.” Kelly, Lisa, and Jessie immediately become infatuated with him. (From “Saved by the Bell”)
Storm is an instructor at Xavier's School for Gifted Youngsters, and Nightcrawler thinks she's beautiful. (From “X-Men”)