Lucentine

Lucentine is the het ship between Jill Valentine and Parker Luciani from the Resident Evil fandom.

Resident Evil: Revelations
Jill and Parker became partners in 2005 after he left the FBC to become a member of the BSAA.

After an investigation mission on a beach near the wreckage of city Terragrigia, their boss receives a call with information that their previous partners, Chris and Jessica, have disappeared and the last known coordinate is in the middle of the Mediterranean Sea.

The duo is sent on a search and rescue mission, sailing in a tow boat in the middle of a storm and the coordinates lead them to find the Queen Zenobia, a large abandoned cruiser ship. There, they immediately realize that something is wrong and as soon they are attacked by strange creatures and cornered by a mysterious masked man, they fall into a trap.

They wake up hours later, separated and without their weapons, but manage to escape and find each other again while exploring the monster-infested ship. Using a good teamwork to retrieve their equipment back, they continued their investigation, overcoming any obstacles that came their way. They managed to survive and discover important pieces of the mystery that surrounds their mission until Chris and Jessica come to rescue them.

After switching partners and being apart for a while, when the ship is collapsing, Jill finds Parker with a gunshot wound in one of the halls. She tries to carry him to the emergency exit, but Parker realizes he is very slow and heavy and they are running out of time, so when one of the metal walkways they are on collapses, even with Jill using all her strength to pull his up, he lets go so she has a chance to survive.

Although, after that, Jill struggles to survive and finish this mission for him. Parker survives and is found on the coast, to be rescued by the BSAA hours later.

Resident Evil: Revelations

 * Parker called Jill on the radio worried, after they were separated by the enemy.
 * Parker gave Jill some Decoys (a type of grenade that distracts B.O.Ws to attack it instead of people before it explodes) he found on his way to the dining hall.
 * Jill and Parker team up to bring down the door of the room where their weapons were locked.
 * Parker held Jill when the ship shook with the big wave caused by The Regia Solis lightning.
 * Jill held Parker's hand so he wouldn't fall after the metal walkway collapsed.
 * Parker released Jill's hand, sacrificing himself, so she wouldn't fall into the fire with him.

Fanon
Lucentine is a very rare pair and fan works are difficult to come by as Jill is most often shipped with Chris Redfield or Carlos Oliveira. Currently, there are no fanfiction about them on AO3.