Why would it be enough to sack Katya @SpanishFly?
Kissing a man while married isn't a punishable/sackable offence in this country. He isn't a minor and she isn't in a position of trust over him, and she isn't in a position of power either (ie. she's not his boss in a place of work.) It's a dance show for goodness sake!
They didn't sack Kristina, who did worse, repeatedly.