Richard Feldman on “Simple Moral Arguments”: http://sites.google.com/site/nobisphilosophy/feldman-simple-moral-arguments.pdf 

Argument worksheet: http://sites.google.com/site/nobisphilosophy/homosexuality-arguments.pdf

or
http://aphilosopher.googlepages.com/homosexuality-arguments.doc

http://aphilosopher.googlepages.com/homosexuality-arguments.pdf