These are the people whom you can use. They aren't the only ones, there are others whom I don't know. Feel free to write about them, but be sure to include their birthdays. I'll hunt them down. Really.

-Jonghyun (8th April)
-Eunhyuk (4th April)
-Xiumin (26th March)
-Kyuhyun (3rd Feb)
-Luhan (20th April)
-Yongguk (31th March)
-Himchan (19th April)
-Jongup (6th Feb)
-Sehun (12th April)
-Daesung (26th April)
-Changsub (26th Feb)
-Hyunsik (7th March)
-Peniel (10th March)
-Hongki (2nd March)
-Donghyun (12th Feb)
-Jo Kwangmin and Youngmin (24th April)
-Ricky (27th Feb)
-Daeryong and Soryong (28th Feb)
-Sunggyu (28th April)
-Woohyun (8th Feb)
-Hoya (28th March)
-L (13th March)
-Soohyun (11th March)
-Eli (13th March)
-Joon (7th Feb)
-Mir (10th March)

Of course, you can pair them with their OTPs, or you can pair them with me. And me only. The name's Xiu, if you're gonna include the name. Id love it if someone would write about me and Jonghyun ><
Of course, I don't mind if you pair them with another female idol. But make sure they females are also February March or April babies.

Like I said, these are not all. I got these information from Idols Age Ranking, credits to CharmingSmile for creating such a useful fic =DD
Be sure to credit her if you use any information from her =]

Open to questions and entries =]

Happy writing =]