Fill 'Er Up - PrologueSam pulled into the driveway and parked the car. "So my uncle was going to give me a car for my 21st birthday, but I had already picked this one out. Instead, he just bought it for me and gave me the rest in cash.""So what did you use the cash for?" Janie asked."Well, silly, today's your birthday. So I spent about half of it on a big surprise for you."Janie was Sam's girlfriend. She was about 5'7", and weighed just over 200 lbs. Unlike most girls, she didn't mind being overweight; actually, she was slightly turned on by it, as was Sam. Sam, on the other hand, was two inches taller than Janie, and maintained a thin figure of 118 lbs.Janie unbuckled, and lifted herself out of the seat. "So, what's the big surprise?"Sam just smiled, and went inside. Janie followed her, into the kitchen.