The first trailer for the fourth and final season of Netflix's hit show Sex Education was released on Wednesday.
The critically-acclaimed raunchy comedy series follows the exploits of teenager Otis, played by Asa Butterfield, who somewhat inadvertently becomes his school's unofficial sex therapist.
The trailer shows Otis clumsily addressing a room full of his classmates about his role at the school.
The third series of Sex Education won Best Comedy Series at the 50th International Emmy Awards last year and has been praised for its approach to its themes, including sexual development, exploration and LGBTQ+ issues.
Otis' mother Jean, a long-time sex therapist, is played by Gillian Anderson.
Other notable cast members are Ncuti Gatwa, Emma Mackey, Aimee Lou Wood and Connor Swindells.
Rwandan-Scottish actor Gatwa has gone on to secure the role as the new Doctor in long-running BBC series Doctor Who, making him the first Black actor to secure the iconic role.
This season of Sex Education sees Dan Levy, best known as David in Emmy-winning comedy series Schitt's Creek, join the cast.
In a letter to fans, creator, lead writer and executive producer, Laurie Nunn said: "We are incredibly proud of Sex Education and feel indebted to our brilliant writers, cast and crew who put so much heart into making every episode.
"They have worked tirelessly to bring you the final series, and we can't wait to share it with you."
She said the decision to end the show was "bittersweet" and not easy to make.
The series hits Netflix on 21 Sept.
