Kayden Kross was 19 in Naked College Slumber Party when she played the character '(as Jenna Nickol)'.
That was over 18 years ago in 2006.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 38, and has starred in 136 movies in total, 135 of those since Naked College Slumber Party was released.
In Naked College Slumber Party, I think Kayden Kross looks: