Sex scenes rarely mimic what sex is like in the real world.

Softly lit bedrooms, the handiwork of a complete hair and makeup team and – how can we put this delicately – climaxes swiftly and easily reached. Sex on the silver screen is often about as far from real sex as carob is to chocolate.

Which is why Charlize Theron fought to include an important conversation in her new romantic comedy Long Shot in the aftermath of one of her character, presidential hopeful Charlotte Field’s sex scenes with her speechwriter Fred Flarsky (Seth Rogen). The scene, which features the very common cinematic occurrence of both characters orgasming very quickly – within about 90 seconds – is dime a dozen in romantic comedies. But what comes next is a conversation between both Charlotte and Fred about why a fast female orgasm is so rare, and that’s what elevates this sex scene from mere titillation to vital conversation starter.

Long Shot: why Charlize Theron and Seth Rogen’s sex scene is so important