You wanna marry her or just ride her into the ground?
If you are talking marriage, you got to remember she lost her virginity when Jimmy Carter was president. You will be changing her diapers in a few years and you wont have kids. Does she have a daughter your age?
If you are talking a good time for a few months, she has experience, hopefully she has a job and money and is quite a bit more worldly that the average 24y/o girl. It should be a good time for both of you.
WAYYYYYYYYY back when I was 19, I dated my 37y/o boss, she was hot and wicked fun in bed. It was a blast. It was kind of strange to buy her nearly 18y/o son VanHalen tickets in order to get him out of the house for the weekend. If I wasn't tapping his mom we could have went to the concert and bagged some babes.