Unsurprisingly, explicit references to the likelihood of Bruce Banner Hulking out during coitus are no where to be found in any Marvel Cinematic Universe property since The Incredible Hulk.
However, during Avengers: Age of Ultron, Bruce Banner remarks that it isn't physically possible for him to have kids, leading to;
Natasha Romanoff, AKA Black Widow revealing that she too is unable to conceive after being sterilised.
As such, it seems safe to assume that the reason for his inability to have kids is the same reason that he couldn't have a physical relationship in The Incredible Hulk - that the risk of an episode is simply too high.
It probably is worth mentioning that in the Marvel Comics, The Hulk has fathered a child named Skaar (in the Planet Hulk storyline), whereas as far as I am aware Bruce Banner never has.