u/Appropriate_Month473

So my dog Darcy (5yo, female, the grey one) has recently become obsessed with licking/kissing my other dog Clementine’s (6 months, female) face. I’m really trying to not encourage it because I don’t want Clementine to get infections etc. but I’m totally puzzled by the behaviour. Darcy never did this with her older (recently passed) sister who she idolized. Any ideas what this means?