Moscovites caught kissing in public places could be fined if city authorities pass a new law currently under consideration, according to a Russian newspaper.
The ban aims to raise levels of public morality - the newspaper says
The kissing ban could even extend to lawfully wedded spouses, Stolichnaya Vechernyaya Gazeta reported.
Quoting unnamed sources, it said the plan was aimed at raising levels of public morality in the Russian capital.
The newspaper added that "particularly blatant cases could even lead to a spell of temporary detention in jail".
It said that if approved the new regulations would be introduced earlier next year.
The newspaper quoted a city education official, Tatyana Maskimova, as saying that travellers in the Moscow underground were in particular indulging in lax behaviour.
"Our children are getting love lessons all day long from what they see around them," Ms Maksimova said.
Human rights campaigner and a leading member of Russia's Democratic Union party, Valeriya Novodvorskaya said she would defy the ban if the new bill is introduced.
"Introducing a ban on kissing is really taking things to the Orwellian level of an anti-sexual league and capital punishment for the offence," Ms Novodvorskaya told Echo Moskvy radio station.
"However, if this is not a joke and the mayor's office is indeed drafting such a resolution, I will from now on spend my days kissing in public places - simply out of principle.
"The moment I see a nice person I know, I will immediately kiss them - even if I don't feel like it. I invite all other Moscovites to do the same," Ms Novodvorskaya added.