Really, that shouldn't have surprised Lois, considering the whole alien thing. But the alien thing still hadn't really set in yet, so hey, color her surprised. And if Lois thought that there weren't any buttons left to push before he said that, she was wrong.
Without thinking about what she was doing, her hand tightened around a nearby coffee mug (not her own, of course, that would be a waste of coffee) before picking it up and chunking it, hard, at Clark. "Why couldn't you have told me at least that part?!" Lois yelled, glaring at him. She was officially mad again. "That wasn't just leaving stuff out, that was lying every time you went all skeptic about him."