It goes without saying that "The Fault in Our Stars" is a heartbreaking, poignant, incredible movie that will rip your heart right out of your chest -- just like that one guy did to that other guy in "Indiana Jones and the Temple of Doom" -- and leave you lying on the floor in a puddle of feelings, forever. But it isn't only that!

As it turns out, the film is also an unlikely sex education resource that contains at least one piece of useful and necessary advice for aspiring uniped Casanovas about just what to do with your prosthesis when things start getting steamy.

"The Fault in Our Stars" screened at BookCon this weekend, with audience members staying afterward for a presentation with some of the filmmakers, including Nat Wolff, Josh Boone, and John Green. And according to a report from Entertainment Weekly, when the floor opened up for questions, one young man took the opportunity to thank the author of the book for giving him an answer to this pressing personal issue. (Note: Mild spoilers for the film's very PG-13 sex scene ahead.)

"As an amputee myself, I just wanted to say thank you, John, for answering a lifelong question of mine, which is: whether, during sex, to keep my leg on or off," he said.

The comment earned a chorus of delighted squeals from everyone present, as well as a hug from Green himself. And for those who want to make amore in the manner of Augustus Waters, consider this the final word on the subject: when your clothes come off, so too should your prosthesis.

Your cannula, however, should stay put.