According to the press release, the episode will feature Holly Holliday coming back to fill in for the absent sex-education teacher. While at McKinley, she and Mr. Schuester will join forces to teach the kids of New Directions all about the birds and bees. Meanwhile, Emma heads up the Celibacy Club, and she and Dr. Carl address some issues in their personal life. Hmm... wonder what those could be. In any case, we’re excited! Mark your calendars for March 8, Gleeks!