Gwyneth Paltrow will reprise her role as Holly Holliday next month on the FOX hit "Glee," and it's going to be sexy!
ET has learned that in the episode, Holliday will substitute for New Direction's sex-education teacher - a subject right up her alley.
At the same time, the more conservative Emma (Jayma Mays) will lead the Celibacy Club. John Stamos will also make an appearance as Dr. Carl.
Watch the "Glee" kids learn all about the birds and the bees Tuesday, March 8.