sherloques:

Captain America: The Winter Soldier Audio Commentary:

“The kiss was something that we contemplated, “Can we do it? Can we not do it?” It’s such an old trope, and it was also the debate of whether there would be romance between them for real in the movie. Eventually we decided not to do it as: (a) there is no time, and (b) it sort of sells both characters short that the only reason to have Black Widow is so that there could be sexual tension. But kisses are always fun, plus it leads to the conversation [later in the car] which really cracks Steve open.”