Acoustic guitar, warm and romantic, two male singers taking turns and then harmonizing on the chorus. Spanish words, felt like a modern Latin pop duet. A couple used it for their first dance.
A line they rememberThe chorus is about wanting to steal a kiss
Sounds like Carlos Vives and Sebastian Yatra, "Robarte un Beso" from 2017. Two male voices trading lines, acoustic pop, very romantic, and it was a huge first dance pick. The chorus is about stealing a kiss, which matches what you remember.