Karyn followed Jon and Biff into Biff's truck, Karyn made Jon sit in the Middle.
All the way to the restaurant Biff had his hand on Jon's thigh and higher. That gave Karyn time to write some more.
"Biff is more affectionate and demanding of Jon, Because he is training Jon to be his girlfriend"
"There that should keep me safe from any of Biff's moves, and if things go to far I can still protect Jon"