Kiss and Tell

source: Shaw English Online    2014年1月28日
Follow Shaw English:

--Fig. to participate in something secret and private, and then tell other people about it. (In actual use, it usually refers to a person of the opposite sex even when it does not refer to actual kissing.)
--to publicly discuss private information about someone you know well; 
--to talk on television, in a newspaper etc. about a sexual relationship you have had with a famous person, especially in order to get a lot of money (source