What do you smoke, Guys? She's not even hot. 
She's not intended to be "smoking" hot. She's intended to be attractive, but still be relatable. Some of those "super hotties" tend to be not relatable at all or even intimidating:
For example:
She is hot but looks like an insufferable biatch, a character you would leave in a dumpster was she not attractive. Jen is supposed to be a character women can relate to and want to emulate, as well as not terrible on the masculine eye-candy scale. Basically an attempt to get the best of both worlds. I think she does reasonably well at that.
Jen Lawrence in contrast looks strong, but inviting and kind:reasonably high on the attractive scale without being isolating or elistist: