[All things considered, Eames doesn't have the worst reaction he could to that. Probably because he heard Arthur come in, he was half prepared for his presence in one way or another. The lips on his neck make him flinch away from Arthur, fumbling a little not to drop the glass in his hands.]
[It's probably pointless, but he does try to cover it up, putting the glass down and turning so he can put his hands on Arthur's hips in return. Even if there was some reason Arthur hadn't noticed Eames flinch like temporary blindness or something, he can't have missed the way Eames' pulse spiked or the way his breathing was quicker for that moment, but maybe they can just... Ignore it.]
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[It's probably pointless, but he does try to cover it up, putting the glass down and turning so he can put his hands on Arthur's hips in return. Even if there was some reason Arthur hadn't noticed Eames flinch like temporary blindness or something, he can't have missed the way Eames' pulse spiked or the way his breathing was quicker for that moment, but maybe they can just... Ignore it.]