Foster was help captive, then is drowned in a lake or a pool. Lightman saves her life by giving her CPR.
Later that night, LIghtman and his daughter are about to eat dinner.
And Foster shows up.
Lightman answers door,
" Hey, um I just wanted to drop off this case file." Foster says.
Lightman gives her a funny look, and takes the file.
"Hey do you want to come in for a moment?" Lightman ask Foster.
"Um it looks like you are about to eat" Foster says observing Lightman's daughter setting the table.
"Yea that's okay, you can eat with us."
Foster pauses for a moment, and says okay.
The three of them have a good dinner, have tons of laughs, and enjoys the rest of the night playing bored games, and watching a movie. Then it's past eleven and Lightman's daughter announces that she is going to bed.
They then show Lightman and Foster standing, and Foster says that she has to go.
"You didn't come here just to drop off the file did you?" Lightman says to Foster as she starts walking to the door.
"No" Foster finally says.
" I came here to say thank you." She also says.
"For what?" Lightman asks.
"For saving my life earlier today. They said that you were the one who jumped in the water to save me, and well gave me CPR."
Lightman just nods and steps closer to Foster.
"And well", Foster continues, " I just admire how you always have my back. And yea so-"
Lightman puts his finger on Foster mouth, and silently says,
Then they both start to kiss.
After just standing there kissing for a few moments, Foster suddenly stops.
"I-i have to go. See you tomorrow." Says Foster and leaves.
Lightman just stands there, and then smiles.
The next day, later in the after noon, Foster enters Lightman's office.
" Hey, here's that paper work you wanted." Foster says.
"Oh thanks." Says lightman, and then stares at Foster, who is still standing in front of his desk.
"What?" Ask foster.
" Anything els?" Lightman asks.
"Yea, I uh just wanted to say that I had fun last night. " Says Foster.
"Even before you left?" Lightman carefully asks.
Foster smiles, " Yea even then. And I just know that I needed the fun, and even that kiss. It made me feel better."
Lightman just nods, and Foster starts to leave.
" Foster." Lightman says.
"Yea?" Foster turns around.
"You know I care about you, right?"
Foster pauses for a moment, then smiles.
"Yea I do. Night." Foster then leaves.
Then Lightman gets up and starts getting ready to leave, when Foster comes back in.
Lightman is surprised, and Foster goes over to lightman, and they start to kiss.
And from then they both know how much they love each other.