060324 -When asked what she thought about having class in trailers, Kristen Buchholtz, right, kissing Hunter Gibson, said "it kind of sucks." South Forsyth High in Cumming has lots of portable classrooms and is scheduled to get 13 more over the summer. Forsyth is the 5th fastest growing county in the nation, according to latest estimates from the U. S. Census Bureau. BOB ANDRES/STAFF