Big sister is in a snit thinking that little sister is in Jose's apartment to make herself available for romance. She charges over to his place and forces her way in, checking every room for her sister. She's embarrassed to discover that, not only is he alone, he's never met her sister. José (Ricardo Montalban) and Eve (Esther Williams) had one dance number together in the movie. During that number, he tried to give her a kiss. He was unsuccessful. He tries again in his apartment after she apologizes and considers having a drink with him. "Baby, It's Cold Outside" is sung on a starry night in Los Angeles. That's the gag of the title and lyrics from Jose such as "But, baby, you'll freeze out there.." and "..never such a blizzard before" as Eve coyly suggests she's leaving. Remember, she's a career girl out to book the celebrity polo player for a top promotional event with her company. Also, José is a harmless flirt. Eve is never in danger.
Then we cut to the loopy, lovestruck sister who's with the man she thinks is a South American polo player.
I agree with her. You're John Legend and Kelly Clarkson! Write a new Christmas song. Why tamper with that Oscar-winner from a 1949 G-rated movie musical? Or...pick another retro holiday duet. Do "That Holiday Feeling" performed by Steve Lawrence and Eydie Gorme.
Through the years, after its Oscar win, that Frank Loesser duet has been recorded as written by Dean Martin with a female chorus, James Taylor with Natalie Cole, Dolly Parton with Rod Taylor and Zooey Deschanel with Leon Redbone for the ELF soundtrack. I saw the few new lyrics for John Legend's "reimagined" version of the song. They are pleasantly bland and do not flow smoothly with the late Frank Loesser's original witty lyrics. People need to stop picking on that old song. Heck. If you want to prove to folks that you're sensitive and aware, rewrite lyrics to "Grandma Got Run Over By a Reindeer" instead.
For grins, here's a jovial updated rendition of "Baby, It's Cold Outside" done by two dudes -- John Schneider and Tom Wopat, the actors formerly known on TV as THE DUKES OF HAZZARD.