This happened a long time ago but still makes me smile.
I was at college and seeing one of my fellow students. The whole class went on a field trip where we all shared a comunial bunk room. It was good fun, but my girl and I couldn't get intimate.
On the third day we went on a walk in the wilderness looking at trees and rocks, etc. Eventually we broke away from the main group. Our frustration levels were sky high. We found a secluded wooded area and started makeing out. The weather was dry but not warm, so we had our clothes on, but open enough to give each other access.
We were sitting on our knees facing each other. We were kissing and fondeling. I then broke off a bit and leaned back, resting on my hands. All I can really remember was that we were not in contact with each other, apart from the fact that she had her hand wraped around my stiff cock. It felt great. I couldn't hold on for too long and spewed my spunk out.
We carried on with our fun but her wanking me off has burned into my memeory. Great!