Since no one else has said it yet...
(Puts on Dr. Drew hat)
She likely suffered a traumatic event in high school, which froze her development, and she is red acting it. There is nothing reasonable about any 25-year-old engaging in a sexual relationship with a 16-year-old, much less having 3 of them. There is nothing awesome about this. It's sad.
Sorry to be a buzzkill.
Nothing awesome unless you're one of the 16 year-olds.