couch talk 

Couch talk is an intimate conversation which happens between two people who aren't really that close but during the talk they open up and discover new things about each other. Usually after the couch talk the two people become much more comfortable with each other, often resulting in a friendship or even a relationship.

When did Tim and Jenny become so close?
They had the couch talk last night.

couch talk by RussianGod May 18, 2014