• Both of them loves Ice Cream
• Mention each other in their albums: Bonamana and Oh!
• Loves Strawberry
• Only have one line in their debut songs: Twins and Into the New World
• Yoona once slept at the hair salon--Ryeowook once slept at SuJu's door because he's too drunk
• Jessica said that Yoona is SNSD's cutest dongsaeng--Donghae said that Ryeowook is Super Junior's cutest dongsaeng.
• Loves ballad songs

Ideals: Ryeowook

Ryeowook's ideal girl is Christian Girl with wavy hair,who sing well (ie. bada), have nice necks,big round eyes, long hair, he says such girls makes him wanna feed her.

Yoona

YoonA's ideal man is Daniel Henney & got a sweet hug from him. On an episode of Champagne Yoona has revealed she likes older guys up to 5 years older. Prefers Kimura Takuya more than Yun Jung Hoon. Doesn't care about height when it comes to ideal man but a little taller than her would be nice.

Correct me if I wrote something wrong and comment if you want to add some facts. Annyeong~~ Kasahamnida!!!!