Video:J. Lo and her married ex husband Marc Athony kiss on stage at the 2016 Latin Grammy Awards

Singer J. Lo presented the 'Person of The Year Award' to her ex-husband and father of her twins, Marc Anthony at the Latin Grammy Awards. Marc Anthony received the award and leaned in to kiss J.Lo on the lips, their lips locked for a few seconds and they both drew away from each. While Marc made is acceptance speech, he called J.Lo his 'Hermana' which means sister.

So the kiss on the lips was brotherly/sisterly to Marc, but J.Lo's face after he said that was priceless, lol.
Marc Anthony is currently married to Shannon De Lima.