No sex scenes or nudity but mature sexual themes and dialogue are present throughout.
Infidelity is a main theme and is explored heavily.
It is implied that individuals have previously been unfaithful in their marriages. This is confirmed for at least one character later in the film.
A character advises another character to avoid settling down and to instead pursue promiscuous relationships
A character offers to be a "wing man" for another character to help them "get laid"
A couple kisses after meeting at a bar
There are several scenes of flirting, typically between a married individual and a single person.