How far should i let my boyfriend go?/? *no below the belt without clothes of course*?

we've been going out for 5 months. We are both each others first bf/gf. I barely get to see him because we go to different schools. when we are together we kiss tongue kiss, etc. and we snuggle on the couch and stuff and he holds me and stuff. We've talked about it b4 and we r both virgins and don't plan on changing anytime soon. i want to know should i let him touch my / area? he's very sweet and i know he wouldn't go too far..