If you thought filming the hot and heavy scenes in the Fifty Shades films was all fun and games, think again: according to the film’s leading star, Dakota Johnson, some of the steamier shots in the newest installment of the series, Fifty Shades Freed, were far from sexy — quite the opposite, in fact.

Not only was the experience scary, “It’s not casual and it’s not fun,” the actress shared in an interview with Marie Claire. The 28-year-old revealed that to ensure that she looked naked without *actually* baring it all on screen, she was meant to wear strapless thongs with sticky-sided place-holders on it. “It’s not glue, but it’s sticky.” (Think the underwear version of a nipple pastie)

Alas, the aforementioned coverups couldn’t quite withstand the rigorous romping required in the film. “[The thongs would] come off because the adhesive would wear out,” she shared. To remedy the issue, “they would superglue [the thong] to my body.” Say what!?

“It’s not painful. I mean, it’s barely anything,” she assured us, adding, “But I guess you have some sense of being covered. “It’s f*cking bizarre.”

As for costar Jamie Dornan, his on-screen wife shared that the actor donned a “really unsexy” pouch.

While you probably won’t sneak a peek of paper panties and pouches on-screen, you *can* expect to see Mrs. Grey wearing one of the most gorgeous wedding dresses in the film, which is good enough for us.

Catch the final installment in theaters now!

What do you think about Dakota Johnson’s 50 Shades Freed attire? Let us know @BritandCo!

(Photos via Pascal le Segretain/Getty)