Exclusive Sneak Peek: Watch the Most Awkward Sex Talk Ever on The Bachelorette

Sex talk on The Bachelorette is par for the course, but what happens when the guys have to talk about sex with a classroom full of kids?

On Monday's episode, Kaitlyn takes her group date back to school for a lesson -- taught by them, of course -- in sex health and education. Poor Josh, a welder from Idaho, is given the awkward task of explaining what a period is. Let's just say he might've had an odd choice of words.

The Bachelorette's Chris Harrison: Kupah took a ginormous dump on Kaitlyn's night

Watch above.

The Bachelorette airs on Mondays at 8/7c on ABC.