Ep 18. Beware My Cheating Bart

In the season 23 episode 18 of The Simpsons, named "Beware My Cheating Bart," Bart is struggling in school and begins to cheat on his tests. Lisa confronts him about his cheating and Bart promises to stop, but he is unable to resist the temptation. Meanwhile, Homer and Marge decide to spice up their love life by attending a seminar on aphrodisiacs.

As Bart's cheating continues, his grades begin to improve and he becomes more popular with his classmates. However, Lisa becomes suspicious and decides to investigate. She discovers that Bart has been using a cheat code on his handheld game console to pass his tests. Lisa confronts Bart again, but this time he refuses to stop cheating.

Meanwhile, at the aphrodisiac seminar, Homer and Marge learn about a rare and expensive plant called "tuberose," which is said to have amazing aphrodisiac properties. Homer sees this as an opportunity to impress Marge and decides to track down the plant. With the help of Comic Book Guy, Homer manages to acquire the tuberose but soon realizes that the plant has dangerous side effects.

Back at school, Bart's cheating is exposed when he accidentally leaves his cheat code on the chalkboard. As punishment, Principal Skinner assigns Bart to take a test without any cheating aids. Bart is unable to pass the test and is forced to repeat the grade.

In the end, Homer and Marge realize that their love is stronger without the need for aphrodisiacs. Bart learns that cheating is not the answer and decides to start studying honestly. The episode ends with a message urging viewers to not cheat and to "do it the right way."