"K... K... Karyn", Biff blurted out, ignoring Jon for now. He couldn't believe. Karyn was standing at the door with a big grin on her face. Her hair was cut short and she was wearing a relatively scruffy pair of jeans and a t-shirt. It was obvious that she wasn't wearing a bra. She had a certain confidence in the way she was standing. She looked almost bigger and stronger than Biff remembered but physically, he knew she was the same. It all quickly clicked in Biff's head. The text messages had all ended with K. Karyn seemed to be effected by whatever had caused this and she was now living the life of his former lover and the father of his baby girl, Jon. Bit unlike Biff and Jon, Karyn seemed to be unaware of the changes.
"Hey babe", Karyn replied, "you look surprised to see me. Sorry we're here so early but this little lady had me up at 6am and she's been a bit fussy this morning so I assumed she missed her mommy." As Karyn said this Jon, who was perched on Karyn's hip, leaned forward and reached out to Biff. Biff complied and took Jon into his arms, still surprised by how light he felt. Jon started talking quickly to Biff, safe in the knowledge that Karyn couldn't understand him.
"Jeez Biff, the look on your face is hilarious. I guess you've figured it out now, Karyn is my dad. I've been dying to tell you since Friday. Just play it cool, she doesn't seem to find any of this unusual and this life she is living is as a nice guy. She was really nice to me all weekend. You should invite her in."
Biff took a breath and smiled at Karyn before inviting her in for some coffee. He lead the way into the kitchen, sensing Karyns eyes on his butt as it swayed back and forth as he walked.