While speaking at the PaleyFest panel for the CW series, Somerhalder said that he didn't think the scene "was such a good idea."
"First of all, it's really cold in Georgia, so I don't think that's such a good idea,” he explained. "It was below 30 degrees, and it got so cold the muscles in my jaw froze and I couldn't speak. I looked like I had Bell's palsy."
“I got icicles in my hair and I got really sick,” Debrev, who became ill after shooting the last kissing-in-the-rain scene, added.
The duo, who were once a real life couple, play Elena Gilbert and Damon Salvatore in the series. And while they've been able to remain co-workers and even friends after their 2013 breakup, another kiss under the rain would be a deal-breaker for Somerhalder.
"You write another rain kiss and I quit," he joked.