I've seen this things before and wanted to try it, I'll have Cloti, Shid, Marzel and Zaerith also. Maybe more, not sure yet...Enjoy!
1. Adoptive
Yuffie and Vincent often told Shelke that just because she was adoptive, didn't mean they loved her less than their biological children.
2. Retold
The thought of retelling how her and Vincent got together scared Yuffie, mainly because she'd rather have Vincent alive then be killed by Cid.
3. Bighearted
Vincent decided Yuffie had a big heart, mainly because she had chosen to love him with everything she had and did it from her own free will.
4. Tingle
Yuffie be lying if she said that half of their relationship came from the thrill of hiding it from everyone, like they were spies or something!
5. Nobel prize
Yuffie knew, along with Vincent Shelke was smarter than most children, hell, most adults! They also knew someday she'd win awards, and they'd be there.
6. Foolproof
Yuffie had a foolproof plan, move in with Vinnie, be Vinnie's friend for life and help him live. What she didn't count on was him falling in love with her, like she was with him.
7. Deplorable
Vincent would never describe Yuffie as adorable, yes she did things that made his heart melt, but she was more deplorable. Especially when she used her charming ways to trick him into going to the Golden Saucer.
8. Microsecond
Within a microsecond, Vincent changed his and Yuffie's entire relationship. From best friends to something more and it was all because of jealousy.
9. Coquettish
Later on in their life, Yuffie found a new and inventive way to make Vincent take a break from his paperwork. All it took was massaging his shoulders, a few choice words and then they were using his desk for an entirely new purpose.
10. Midwinter
It was midwinter when Vincent returned from a long mission, it was also midwinter when he discovered he was going to be a father.
11. Solution
Yuffie had once thought of a solution to Vincent's fixation with the late Lucrecia, she told him while he was drinking his coffee she was going to grow her hair out, die it light brown and wear dresses. He promptly choked on his coffee.
12. Might
There was no doubt in Yuffie's mind that she loved Vincent, she defiantly loved a challenge. However she knew there was a high chance Vincent might not love her, but she took the risk.
13. Guilt
The first time Vincent ever dreamed about Yuffie as more than a friend, he felt like shooting himself. He couldn't even meet Yuffie's eyes at breakfast. He knew it was only part of human nature that made him fantasized about Yuffie, that still didn't help the guilt.
14. Provision
Yuffie and Vincent were quite adapt at rations and provisions, however Vincent would never know where she learned to cook.
15. Redecorate
When Yuffie had moved in, she had whipped out a catalog and went on and on about how to make this place less like a crypt and more homey. He left immediately for a two month mission.
16. Second-guess
Sometimes Yuffie couldn't help but second-guess herself and Vincent. Really what did he see in her? She wasn't graceful or charming like Lucrecia, she most certainly didn't look like Lucrecia, but Vincent kept telling her that was part of her appeal.
17. Conceive
Tifa had once, in one of her moony states, told her about how magical the night her and Cloud conceived Zack was. Later in life Yuffie would always remember Tifa's shocked and slightly scandalized face when she mentioned the twins were conceived on Halloween.
18. Child
Yuffie was a child when they first met, barely sixteen. So years later when she grew up-Lifestream she did-he would try and remind himself she was much too young, no matter how much he wanted her.
19. Self-satisfied
Yuffie always felt slightly better when she made sure the crazy Nibelheim women knew Vincent was hers!
20. Puzzlement
Almost half of AVALANCHE were completely puzzled and confused when one day when all gathered in Nibelheim because Yuffie was giving birth.
21. PTA
Yuffie never talked to the PTA, in fact she just plan ignored them. However the one time she went to one of those meetings, she was never let back in.
22. Scary
Vincent wasn't scary, at least in Yuffie's mind. The world tended to disagree when she claimed Vincent was not scary, she'd seen scarier puppies.
23. Insanity
Their relationship was not foreseen; in fact the world should have exploded the day they kissed. It defied any and everything they were, pure insanity. Yet that was how Yuffie liked it.
24. Fighter
They were fighters; they bonded in battle over spilt blood and dressing wounds. The fighter in them never would disappear, especially since most of their dates were spent on missions for the W.R.O
25. Meddle
Yuffie liked to meddle, she once convinced Tifa to have a date with someone other than Cloud. However when Tifa tried to return the favor, Yuffie promptly hung up and refused to speak to her for a month.
26. Disability
Vincent always assumed his claw was a disability, especially since it had taken a while to simply remove it. Though he discovered it was quite handy in assisting a certain ninja out of her clothing.
27. Typical
Yuffie laughed, loudly, when Tifa asked if she ever wanted a typical relationship. She was perfectly fine with going on missions-which often left them alone in hotel rooms-arguing over stupid stuff and being Vincent's support.
28. Cheerful
Yuffie was constantly cheerful, because most of AVALANCHE was depressing. Few people got to see her be herself, broken as the rest of them. Vincent was one of them.
29. Unbuckle
Vincent decided Yuffie was naturally weird when she wanted to time how fast she could unbuckle his cape and belts.
30. Thirteenth
On their thirteenth wedding anniversary, Vincent told in the midst of passion, "that Lucrecia paled in comparison to her, his wife." Yuffie could only cry.
31. Reissue
Yuffie forced some damn magazine to reissue their latest printing when she read the headlines. "Extra, Extra! Tifa Lockhart and Vincent Valentine seen entering a restaurant."
32. Tearful
Yuffie was quite proud of herself for only crying a handful of times, but throughout her pregnancies she ended up crying more times then she could count.
33. Refrain
Yuffie refrained from mentioning Lucrecia, not wanted Vincent to have a relapse. Vincent refrained from mentioning Lucrecia, because he didn't want to upset Yuffie.
34. Motion sickness
Over the years, Yuffie's motion sickness had become manageable, but she ended up passing it onto their children.
35. Mine
Yuffie and Vincent thought process was more in-tuned then anyone could assume. Mainly when they walked down the streets of Edge and men and woman eyed one or the other, the only thought in their minds as they kept close to each other were. "Mine."
36. Engrave
The first time Tifa saw the ring on her finger, she instantly admired it. Sadly she would never know the two short words engraved on the inside that meant the world to her. "My ninja."
37. Catching
Yuffie rarely fell, she was composed and in control. However when she needed to fall, Vincent would always catch her.
38. Place
Yuffie's favorite place in the house was the kitchen; it was the place where Vincent first kissed her, the place where she told him she was pregnant-both times-it held plenty of good memories. Except when she confronted him over Lucrecia, but she tended not to think about that day.
39. Biting
Yuffie decided Vincent was part vampire, since he appeared to have a slight obsession with her neck and biting it.
40. Marksman's
Vincent was an excellent marksman, he was scary good. Yuffie wanted him to teach her; however she could only handle one lesson of Vincent breathing on her neck as he gave instructions, being behind her and holding her arms as he fixed her aim.
41. Seeming
They were seemingly incompatible, opposites to their friends. Inside though they were more alike than they cared to admit: Broken, used and tossed away.
42. Legalize
The day they legalized their relationship in the courthouse, Yuffie knew that they weren't playing and it was real. Strangely it didn't scare her as much as it should have.
43. Source
Whoever sources said that their children's father was Reno, was never heard of again.
44. Antisocial
Vincent was naturally antisocial; they day he ever tried to strike up a conversation the world would just explode. But that was fine; Yuffie was social enough for the both of them.
45. Unison
Yuffie and Vincent rarely said anything in unison, there was one occasion when Shelke said she was considering moving in with her boyfriend during colledge, they both said in unison. "No."
46. Noncompliance
Yuffie rarely stepped down, when they argued over something stupid. He often enjoyed those fights, mainly because Yuffie was even more attracted when she was angry.
47. Attract
Vincent had once sat down and tried to convince himself he was not attracted to Yuffie. No, he was not attracted to those long tan legs, her very tempting neck, and her curves she never tried to hide and-as Vincent realized where his thought process was going; he decided he needed to go shoot something.
48. False
Yuffie often wondered why she felt so happy when she took her second pregnancy test and it wasn't false, even though the twins had yet to turn two.
49. Obnoxious
Yuffie was obnoxious, it worked to her advantage. People underestimated her because of it; they just assumed she was all mouth and no action. Yuffie did prove to Vincent she was the complete opposite, if you know what I mean.
50. Saunter
Reeve often worried when Yuffie would visit the W.R.O, enters Vincent's office, and saunter out hours later. Once their relationship came out in the open, he decided he'd rather not know anymore.