A/N: Contains some sentences referring to plot (and in one case DLC) of Final Fantasy XIII-2 and Dissidia 012: Final Fantasy. I know these probably aren't as good as the first 50, but I felt spurred to try my hand at more and the ideas started to run thin after a while, but hopefully they can still be enjoyed.
51. Fight
As her sister appeared before her on the coliseum floor with gunblade drawn, Serah's face fell.
52. Alike
Yuel smiled sweetly at Lightning, and the pinkette immediately covered the oncoming nosebleed; she was stunned at how much this girl reminded her of Serah.
53. Want 2
"Give her back! Give me back my sister, you...you worthless God!" Serah screamed into the face of Etro.
54. Protect
Caius' smirk was faint as he stared up along the length of Lightning's blood-stained sword. "You and I, we both have someone we love to protect, don't we?"
55. Born
She could wish they hadn't been born sisters all she wanted, but she knew they would probably never have fallen in love otherwise.
56. Message
Mog whispered his message from Lightning to Serah, and the pink-haired youth immediately broke down weeping.
57. Curse
Vanille, Fang, Lebreau, even Jihl...why couldn't any of them free her from this horrid curse to desire her own flesh and blood?
58. Baby 2
The emotional imbalance due to her pregnancy had brought out many oddities in Lightning, including her acting much like a doting wife toward her own sister.
59. Pink
Lightning loved to kiss every little pink thing she could find on her darling Serah, from head to toe.
60. Struggle
The engagement was bad enough for Lightning to deal with, but having to watch them exchange vows was just unbearable.
61. First
"I'm not letting him have you," Lightning moved her trembling hands deeper, "At least not, until I've had you first..."
62. Blur
Lightning no longer knew which side she stood on the vast chasm that separated sister and lover.
63. Envy
No one would have expected it, and Lightning would sooner die than admit it aloud, but she was jealous of Snow.
64. Pretty
Serah was often considered the 'pretty one' of the siblings, but in Serah's own opinion, Lightning was far, far prettier.
65. Positive
"It may be incest...but at least we're both legal, right?"
66. Comfort
Lightning spent the entire day with her little sister after learning about Snow and Lebreau's new relationship.
67. Fantasy
Riding on Odin into the sunset with her sister, handsome and armored, was a fairy tale that Serah could be satisfied with.
68. Dream
Noel didn't know whether or not to bring up all the times Serah murmured her sister's name in her sleep.
69. Drug
As Lightning continued to kiss, lick and nip at her sister's neckline, a flustered Serah made mental note to thank Maqui later for this.
70. Other
As she strode into battle for the sake of Cosmos, Lightning could have sworn there was someone else she protected once, someone she loved but shouldn't have.
71. Lost
Just how many lost loves and potential relationships had she given up, all for the sake of a romance she knew could never be?
72. Kiss 3
In their childhood, Lightning had kissed many of Serah's cuts and bruises, but the little sister always insisted on a kiss on the lips because she thought it was more like 'in the movies'.
73. Speed
Serah had been using that nickname for her sister long before she started calling herself 'Lightning' on her own.
74. Ring 2
Lightning always made sure Serah took off her wedding ring before they started kissing.
75. Deal
To willingly become the servant of the Fal'Cie was practically a death wish, but if it was for her sister, Lightning would do so without pause.
76. All
"Serah, I can be a mother, a sister and a lover for you all at the same time! What more do you need to finally accept me?"
77. Pity
Lightning couldn't help but feel some pity for Hope; he had made a terrible mistake, falling in love with a sinful woman like her.
78. Wedding
As the elder Farron slid the ring onto the younger Farron's finger, those gracious few who sat in the pews burst out with applause.
79. Alcohol
Alcohol became strictly prohibited in the Farron household after Lightning once drank too many glasses of vodka and confessed that she wanted to lick her sister's face all over.
80. Need
Serah needed Lightning, this was true, but Lightning needed Serah even more.
81. Embrace
Lightning knew everything would be alright again as she held Serah close, the great crystal structure behind them extending like a beacon into the sky.
82. Scent
Serah could bury her face into Lightning's chest and whiff on that strawberry-scented perfume for hours on end.
83. Touch
The most feathery of touches could send her into shivers while she was most vulnerable, but she loved it that way.
84. Costume
Serah had only learned about Lightning's secret cosplaying habits recently, but she'd already picked out her favorite one: gothic lolita.
85. Number
When Fang asked how many times she'd slept with Serah already, and Lightning bashfully gave her answer, the Yun woman looked up to the ceiling and gave out a low whistle.
86. Virgin
"It's okay, Claire...we'll just take it slow..." Serah assured her, and Lightning, the woman who had saved the world, defeated numerous Fal'Cie and had been Serah's lone caretaker for the past several years, never felt so barren of pride as she did right now.
87. Cake
Lightning usually didn't have the time, but she was actually a master in the kitchen; Serah would have been willing to fight the law and get the right to marry her own sister just to eat homemade strawberry cake every day.
88. Over
Lightning hadn't seen Serah since the day she finally broke down and admitted her feelings went beyond sisterhood; she missed her baby sister so very much.
89. Bath
Serah handed her aroused sister the soap-soaked sponge and playfully winked. "C'mon, Claire, you can wash my back if you'd like!"
90. Grace
One sister led the other across the dance floor, their movements so smooth and in tune that it was as if they had done this hundreds and thousands of times before.
91. Bed
For a long time, there had only been one bed in the Farron household, but a second one was eventually brought in to keep up good appearances.
92. Hesitate
Lightning looked for some hint of guidance from her own little sister, not able to trust herself in this situation, but then she saw that brief flash of insight, and she immediately realized that Serah's hands had already dipped below the sheets.
93. Three
"One: you will stay out no longer than ten while in his company, and you must come home immediately afterward." Lightning stated as she brought her hand down, and Serah quivered in ecstasy from this pleasure found in pain, "Two: you will cleanse yourself of his stench immediately upon returning home. And lastly..." Lightning forced Serah back onto her feet, and their lips locked, dry on wet, "After you've done that, you will come into my bed, and I will outdo him in anything he's done to you beforehand."
94. Coffee
"Here you go." Serah said, holding out the hot cup, which the weary Lightning took with both a grunt of 'thanks' and a kiss on the lips; a typical morning.
95. Believe
"I believe in you, Claire. I always will."
96. Dog
Serah felt like everyone's eyes were on her neck, staring in disbelief at the jewel-encrusted collar she wore with Lightning's name on it.
97. Life
"In love with your own sister? Even though she's already married to a guy?" Fang laughed, "Man, Sunshine, your life really does seem to suck, doesn't it?"
98. Emerald
The way her sister's glorious emeralds always flared up in a jealous rage whenever Snow flirted with her; Serah found it absolutely irresistible.
99. Thousand
Serah tried to come up with a thousand ways she could express to her sister how much she loved her, but she ended up getting stuck at number 978.
100. Pull
Although they had grown up together as flesh and blood, although they had always been close siblings, although they had to take on a more responsible role upon their parents' deaths, the pull of attraction was still there and it kept growing stronger every day since their sisterhood ended and their romance began, but Lightning and Serah could not have wanted it any other way.