Kissing

Lost is a trifecta of action, mystery, and romance, and that includes some kissing. There are several instances where the characters have shared intimate moments, both on the Island, in their lives prior arrival to the Island, and after leaving. However, the kisses that occur on Lost are not always normal romantic fare; sometimes they entail deception and manipulation.

Occurrences

The following main characters have kissed romantically:

		Characters	Episodes
		Boone & Shannon	1 episode
		Charlie & Claire	3 episodes
		Hurley & Libby	2 episodes
		Jack & Juliet	2 episodes
		Jack & Kate	4 episodes
		Jin & Sun	7 episodes
		Paulo & Nikki	1 episode
		Sawyer & Ana Lucia	1 episode
		Sawyer & Charlotte	1 episode
		Sawyer & Juliet	3 episodes
		Sawyer & Kate	7 episodes
		Sayid & Ilana	1 episode
		Sayid & Shannon	4 episodes
		Desmond & Penny	4 episodes
		Bernard & Rose	3 episodes

The full list of every kiss between any characters is given below:

Season 1

Jin kisses Sun at one of her father's parties. ("House of the Rising Sun")
Kate kisses Sawyer in exchange for the location of Shannon's inhaler. ("Confidence Man")
Sayid kisses Kate on the hand before leaving on a journey of self-isolation. ("Confidence Man")
Shannon kisses Boone in his hotel room after she reveals that her latest fling took the money Boone gave him. ("Hearts and Minds")
Sun and Jin kiss in the dressing room after their wedding ceremony. ("...In Translation")
Shannon kisses Sayid. ("...In Translation")
Jack kisses Sarah while discussing the writing of marriage vows. ("Do No Harm")
Shannon and Sayid are kissing on the beach while, unbeknownst to her, Boone is clinging to life. ("Do No Harm")
Kate kisses Tom Brennan after listening to the tape from their time capsule. ("Born to Run")
Sun kisses Jin before he leaves on the raft. ("Exodus, Part 1")
Claire kisses Charlie on the cheek after he offers to carry Aaron. ("Exodus, Part 2")

Season 2

Helen kisses Locke at a restaurant as they discuss his issues with his father. ("Orientation")
Shannon and Sayid kiss in the new tent he builds for her. ("Abandoned")
Kate kisses Sawyer's forehead as she tries to get him to take the antibiotics. ("Collision")
Bernard and Rose kiss when they reunite after 48 days. ("Collision")
Kate kisses Jack while distressed. She later apologizes to him for the kiss. He says he's not sorry she did it. ("What Kate Did") ("S.O.S.")
Gabriela Busoni kisses Jack after her father dies. Jack explains to her that he can't do this and later confesses the incident to Sarah. ("The Hunting Party")
Sawyer and Cassidy kiss while in bed together. ("The Long Con")

Sun and Jin kiss in bed after she shows off her nightie. ("The Whole Truth")
Jin kisses Sun in the garden after she says she loves him. ("The Whole Truth")
Helen kisses Locke as he prepares a picnic basket. ("Lockdown")
Libby kisses Hurley as she talks him out of jumping off the cliff. ("Dave")
Bernard kisses Rose while standing on the beach. ("S.O.S.")
Sawyer kisses Ana Lucia. This was part of Ana's ploy to get Sawyer's gun. ("Two for the Road")
Claire kisses Charlie as she forgives him and tends to his wounds. ("Live Together, Die Alone, Part 1")

Season 3

Sawyer kisses Kate while in captivity by the Others. ("The Glass Ballerina")
Jae Lee kisses Sun with whom she is having an affair. ("The Glass Ballerina")
Colleen kisses Danny before going on the mission to get Desmond's sailboat. ("The Glass Ballerina")
Kate kisses Kevin Callis. ("I Do")
Kate and Sawyer kiss. Repeatedly. ("I Do")
Alex kisses Karl before seeing him off to the main Island. ("Not in Portland")
Achara kisses Jack while they lay in bed together. ("Stranger in a Strange Land")
Desmond and Penny kiss four times after he returns to 1996. When he first realizes when does he is, before going to Widmore's office, after returning from there, and just before Desmond leaves her. ("Flashes Before Your Eyes")
Kate kisses Charlie on the cheek as she sets out to rescue Jack. ("Tricia Tanaka Is Dead") (deleted scene)
Nikki kisses Mr. Zukerman. ("Exposé")
Nikki and Paulo kiss. ("Exposé")
Juliet and Goodwin kiss in bed. ("One of Us")

Kate kisses Sawyer. ("Catch-22")
Kate kisses Sawyer. ("The Brig")
Charlie kisses Claire goodbye. ("Greatest Hits")
Juliet kisses Jack before leaving on her potential suicide mission with Sawyer. ("Through the Looking Glass, Part 1")

Season 4

Sayid and Elsa kiss passionately. ("The Economist")
Kate and Sawyer kiss after he says he'll keep her safe. ("Eggtown")
Goodwin and Juliet kiss on the beach. ("The Other Woman")
Jack kisses Juliet after she confesses her feelings for him. ("The Other Woman")
Jin and Sun kiss. ("Ji Yeon")
Tom and Arturo kiss on the cheek. ("Meet Kevin Johnson")
Ben kisses Alex on the forehead to say goodbye. ("The Shape of Things to Come").
Jack and Kate kiss four times over the course of the flashforward. ("Something Nice Back Home")
Carmen Reyes gives Sayid a welcoming kiss on the cheek. ("There's No Place Like Home, Part 1")

Sayid and Nadia share a tender kiss upon their reunion. ("There's No Place Like Home, Part 1")
Hurley kisses Kate on the cheek upon her arrival at his surprise party. ("There's No Place Like Home, Part 1")
Charlotte gives Daniel a goodbye kiss on the cheek. ("There's No Place Like Home, Part 2")
Sawyer kisses Kate goodbye. ("There's No Place Like Home, Part 2")
Desmond and Penny kiss passionately upon their reunion. ("There's No Place Like Home, Part 2")

Season 5

Desmond and Penny kiss after the birth of their child, Charlie. ("Jughead")

Kate kisses Jack after telling him that she is going with him back to the Island. ("316")
Sawyer kisses Juliet the evening after she successfully delivers a baby boy. ("LaFleur")
Sayid and Ilana kiss passionately before she reveals she is on assignment to take him to Guam, and knocks him unconscious. ("He's Our You")
Desmond and Penny kiss after he recovers at the hospital. ("The Variable")
Sun and Jin kiss after exchanging rings at their wedding. ("The Incident, Part 1")

Season 6

Bernard and Rose kiss on Oceanic Flight 815 in the flash-sideways timeline. ("LA X, Part 1")

Sawyer kisses Juliet before she dies. ("LA X, Part 1")
James kisses Ava during a police set-up in the flash-sideways timeline. ("Recon")
James kisses Charlotte Lewis in the flash-sideways timeline. ("Recon")
Sun and Jin kiss before having sex in the flash-sideways world. ("The Package")
Libby kisses Hugo on their date in the flash-sideways timeline. ("Everybody Loves Hugo")
Sun and Jin kiss as they are reunited after three years apart. ("The Last Recruit")
Sun and Jin kiss minutes before their deaths. ("The Candidate")
Sayid and Shannon kiss as the remember each other in the flash-sideways timeline. ("The End")
Charlie and Claire kiss as they remember each other in the flash-sideways timeline. ("The End")
James and Juliet kiss as they remember each other in the flash-sideways timeline. ("The End")
Jack and Kate kiss as they declare their love for each other. ("The End")

Missing Pieces

Michael and Sun nearly kiss, but they were interrupted by Vincent. ("Buried Secrets")