So will Beckett and the rest of the 12th precinct be teaming up with the detective from Hong Kong in order to catch a killer?
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Kate Beckett is used to being the hottest, smartest, toughest detective on her team but things might be changing.
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Even while donning a space suit, Beckett is capable of delivering that glare. What did Castle do to deserve it this time?
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Oh good. We get to see Esposito in the spacesuit too. But where's Ryan? And wouldn't you just pay to see Capt. Gates in there too?
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Kate Beckett can make anything look sexy, even a police uniform but not even she can look good in a space suit.
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If there was even a question about whether or not Kate gets away from 3XK, Beckett is definitely alive and now donning a space suit.
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Castle and Beckett don spacesuits and enter a Mars simulation to figure out how an astronaut ended up dead on Castle. "The Wrong Stuff" is the 16th episode of the show's seventh season.
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We really hope that this is the last time Castle and Beckett will have to face off against 3XK.
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Castle Quotes

Beckett: Wait, there's a sex scene in the book? Between us?
Castle: There's a sex scene between Nikki Heat and the roguishly handsome reporter who's helping her.
Beckett: Oh, good. So he's nothing like you.

So how did she take it, us being together?

Beckett