It's no secret that Olivia continues to gain weight. This has been a growing trend for the 3 years. Prior to that she was super skinny, when she first started modeling. Olivia Jensen fell in love with food. Despite her obesity men still found her beautiful. olivia jensen weight gain chapter 4. After saying this, adam left and came back 40 minutes later. It was KFC! Olivia still in bed was excited, he a brought her 2.