I'm a Social Science student, as well, and I took English as an elective (this was before I knew I was going to major in it, lol) in first year.
Hmm, I believe the only time you need English as a pre-requisite is for other English courses, and maybe even cultural studies and/or theatre & film.
If you're interested in taking it, then I'd definitely say go for it!
It would count as an elective, and if you ever needed it in the future, then you'd have it. (Y)