Something suddenly clicked in Shelly's head.

"Wait a minute, if my real father had a child with another woman, that means I have a sister or brother the same age as me!" She delighted in this fact. "Wow, I've gone from an only child to a sister to two; well, one and one on the way. Oh mom, I need to find your friend, do you know where she is now? Do you still keep in touch?" The 15 year old seemed to have totally disregarded finding her father and moved onto her long lost sibling.

"Well honey, we moved away from the area as soon as we could. I told Dean it was because I wanted a fresh start but it was really because my bump was starting to show and I didn't want Sheldon to know I was pregnant. It would have made things even harder than they already were, and being separated from him was already almost unbearable. It's true what they say; you don't know what you've got 'til it's gone. Especially when it goes and then sends you letters telling you how much they miss you and want to be with you. He told me that nothing and no-one compared to me and it wouldn't be right it someone smelt better than me, or was funnier than me, or served better food than me because you can't top perfection…"

"Mom, I love you and everything, but I really just want to know where my dad is, where my brother or sister is. Have you an address?" Shelly said impatiently.

Leslie came back to earth with a thud. "Um, I haven't talked to Katy in 15 years sweetie so I doubt you'll find her at the address I have. Your father insisted that we sever all ties after he found Sheldon's letters. I still don't know how he got our address…"

"Mom! The address book!"

"Oh yes, I'll find it now." Leslie said absently. She got up from the bed and looked at her daughter still under the covers.

"Are you ever going to get up today? It's almost 12pm!"

Shelly rolled her eyes and got out of bed.