EXCLUSIVE: Ryan Lochte Dishes on Wedding Plans, Dons 'Alice In Wonderland' Costumes With Fiancee Kayla Reid

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Wedding bells are definitely in Ryan Lochte's future -- he just has to get through Dancing With the Stars first.

The Olympic gold medalist and his fiancée, Kayla Reid, attended George Clooney's annual Halloween bash, hosted by Casamigos Tequila, in Beverly Hills, California, on Friday, where the pair were adorably dressed in Yandy.com costumes as the Mad Hatter and Alice from Alice in Wonderland.

Getty Images for Casamigos Tequila

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As if those on-point couples costumes -- which only took them an hour to put together -- weren't enough excitement for one night, the pair chatted with ET's Brendon Geoffrion about the timeline of their upcoming nuptials.

"Well, right now I'm on Dancing With the Stars, so once that's over, then we're going to start planning, but I think we decided August [or] September," he revealed, with Reid confirming, "Next fall."

With a 2017 date nearly figured out, the next step is deciding on a location, which Reid said is "the hardest part." They seem to have at least narrowed down the region, though. "I'm thinking we're going to have it around the West Coast," the 32-year-old swimmer said.

No matter where the nuptials will be, Lochte revealed earlier this month that his DWTS crew will be a part of it, as "the whole entire show" will be invited.

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"I mean honestly, it's been like a family," he told ET's Nischelle Turner during a Wednesday rehearsal with his pro dance partner, Cheryl Burke. "I definitely want for the wedding itself, my closest friends and family. And then afterwards, you know, that's a celebration, so I'll have a huge, huge party."

Lochte is quite clearly putting a lot of focus into his DWTS run. The two have been making their mark on the dance floor, including last week's Aerosmith rumba and their sexy salsa before that. Check out the colorful performance of the latter in the video below.

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