I underwent a total colectomy in 2004 for torrential diverticular bleeding and, in response to another Medhelp patient's posting, I summarised my experiences on:-
http://www.medhelp.org/posts/show/523166 (see my posting in May 2008).
This is a big operation and, from my recollections, it "slows you down" somewhat due to the time that the abdomen takes to become totally "ache-free" after what is major surgery.
I don't remember the aftermath of the surgery greatly interferring with my "libido" but then at the age of ~59 at the time of my surgery I suppose that I might be a bit "past-it" compared to your youthful 31 years!!
I certainly never had an accident but if you are worried about this perhaps ensure that you try to have a #2 movement before you go to bed or "swing from the chandaliers" or whatever is your private pleasure!!
Good luck
regards
Morecambe