Riding the fence by 9tiptoes shows a strong father/son bond between Dean and Bobby:
http://9tiptoes.livejournal.com/24688.html
Summary: After becoming injured on a hunt w/ his father & brother, and despite his wishes, 20 yr old Dean is left w/ family friend & fellow hunter, Bobby Singer while John & Sam leave on a week-long hunt. Not one to let Dean stew too long in his own juices, Bobby quickly puts Dean to task. Along the way, the window into Bobby’s world is opened and through it Dean learns many things about Bobby’s life and he may just learn something about himself as well.
http://www.fanfiction.net/s/5365066/1/With-Blood Bobby Singer was just a friend to a widower, not minding the occasional babysitting. But his devotion for the Winchester family truly began when he was struck by a terminal illness and saved only by a sacrifice from Dean. Pre-Series.
no subject
Date: 2013-01-24 09:44 am (UTC)http://www.fanfiction.net/s/6821414/1/Deaf-Hunter
http://www.fanfiction.net/s/7819015/1/Deaf-Son
http://www.fanfiction.net/u/2745422/2People
check out the rest of the stories most of them have protective Bobby.
no subject
Date: 2013-01-25 10:40 am (UTC)http://9tiptoes.livejournal.com/24688.html
Summary: After becoming injured on a hunt w/ his father & brother, and despite his wishes, 20 yr old Dean is left w/ family friend & fellow hunter, Bobby Singer while John & Sam leave on a week-long hunt. Not one to let Dean stew too long in his own juices, Bobby quickly puts Dean to task. Along the way, the window into Bobby’s world is opened and through it Dean learns many things about Bobby’s life and he may just learn something about himself as well.
no subject
Date: 2013-01-27 10:27 pm (UTC)Bobby Singer was just a friend to a widower, not minding the occasional babysitting. But his devotion for the Winchester family truly began when he was struck by a terminal illness and saved only by a sacrifice from Dean. Pre-Series.