They go together

## ...like WAKKA WAKKA WHOA...

### Sharesies

* Castle has spent the night at Beckett’s, guarding her with his ‘rapier wit’, but was forced to sleep on the couch (2x17). Beckett spends at least one night at Castle's loft after her apartment blows up (2x18), presumably in Martha’s recently-vacated (2x17) room. They also shared a hotel suite in Los Angeles (3x22), but with separate rooms.
* Both of them went to Drake's Magic Shop all the time when they were about thirteen (although this would have been nine years apart, 3x12), adore *Forbidden Planet* (3x19), and have dressed up as Gene Simmons for Halloween (3x22).
* Castle and Beckett split custody of Royal the dog for a night after his owner is found murdered (4x13).
* Beckett stays at Castle's loft while her building is being fumigated (5x10), although the loft gets even more crowded when Meredith shows up to "take care" of Alexis.

### Gifties

* So far, Castle has given Beckett advance copies of *Storm Fall* (1x01) and *Heat Wave* (2x05), a formal dress (1x07), $100,000 to find her mother’s killer (2x13), a signed photo from the cast of *Temptation Lane* (3x18), and had her father’s watch repaired after her apartment exploded (2x18). He took a crazy selection of food to Beckett at the precinct at the end of *Sucker Punch* (2x13), upgraded her to first class when they went to LA, and paid for their luxury suite (3x22). He brought a bottle of 2000 Chateau-Neuf-de-Pape when he went to Beckett’s to “protect” her from Dunn (2x17), flowers when he visited her new apartment for the first time (3x13) and after she was shot (4x01). He first brought her coffee and a bearclaw in 1x09 (it was still Esposito’s job in 1x05), and has bought or brought her an untold number of coffees since. He even gave the break room an espresso machine (1x04).
* Beckett has given Castle flowers magically produced from her sleeve when he broke up with Gina (3x12), taken him to see *Forbidden Planet* (with popcorn and possibly dinner - 3x19), brought him coffee and later took him out for consolation drinks when his friend turned out to be a murderer (3x15), and helped arrange for him to purchase one of those bottles of incredibly rare, incredibly expensive Scotch (3x10). She also bought him dinner to make up for Serena turning him down (4x05).

### Helpsies

* Castle has asked Beckett to watch out for Alexis if anything happens to him (2x19). She’s given him tons of advice on dealing with a teenaged girl, like when Alexis wanted a scooter (3x03), to go on a school trip to Europe (2x09), and to go to college with her boyfriend (3x23). She babysat Alexis’ egg baby, Feggin, when Castle had to go rescue Alexis and her very drunk friend Paige from a seniors party (2x06).
* Beckett also tries to keep him from being Surveillance!Dad. Castle asked Beckett to run a background check on Alexis’ first date, Owen, but she refused (1x10) and she also disapproved quite strongly when he was tracking Alexis via GPS (3x19).
* Beckett has given Alexis a job at the precinct as an intern (2x10), and has given her advice on study-abroad programmes (2x09). Alexis made Beckett a hot chocolate when she stayed over after her apartment was bombed (2x18, deleted scene). Martha has lent Beckett a ruby necklace to go with Castle’s dress (1x07) and given her a heartfelt hug when her mother’s case suddenly reared up again (2x13).

### Savesies

* According to Castle, he has saved Beckett's life 9 times while she has saved his 8 times (4x07). As far as we can tell, these are:
	+ They’ve definitely saved each other a number of times: In the pilot, Castle disarms Tisdale. In 1x06 he gets Beckett a clean shot when a suspect has them pinned down. In 3x01 he pushes her to the floor to save her from being shot, then later they each shoot the shooter about to shoot the other. Castle takes Lockwood down hard as he’s about to shoot Beckett (3x13). In 3x17 Castle saves them both from going splody along with half of NYC. He also calls Beckett to tell her that she's still in danger and subsequently "braves the hellish flames" to save Beckett from her burning apartment, and shoots a gun out of Dunn’s hand after they’ve both saved Jordan Shaw (2x18). And of course, there's Castle carrying Beckett out of the hangar in the S3 finale (3x24). That brings Castle's total up to nine.
	+ Beckett steps on the perp's wrist to stop him shooting Castle in 1x07, saves him from the Russian mob (2x01) and shoots Coogan before he can shoot Castle (2x13). In 2x14 Beckett stopped the pet store owner shooting... well, anything that moved, and we're presuming she saved him from the dogs attacking him because he was 'cursed' (2x19). In 3x01 they each shoot one of the bad guys, and Beckett throws herself on Castle to protect him from the flashbangs in 3x24, and -- at least according to Castle -- saves him from getting shot during the bank hold up (4x07). That brings Beckett's total up to eight.
	+ Since then Castle has also saved Beckett (and himself) from drowning in her car (4x17). In 5x05, Jerry Tyson has Beckett at gunpoint, but Castle shoots Tyson, saving Beckett (but, as we find out later, not ending Tyson). In an alternate universe (7x06), Castle takes several bullets to shield Captain Beckett, apparently on the brink of death when he's returned safely to his own universe.
	+ Several times they’ve been too late: Beckett didn’t get to Castle until after the Triple Killer had departed, but thankfully he wasn’t dead (3x06), and Castle didn’t get to Beckett before she was shot in the chest by a sniper (3x24). **So, if we're counting near-misses like the bank holdup, that would technically make it 10 and 9.** (In the freezer, had it not been for Josh calling Esposito and Ryan, they’d both have died (3x16), so we're figuring that one doesn't count.)