I had just graduated high school and was on a church sponsored trip in the Boundary Waters area of the Minnesota wilderness. I was hopelessly inexperienced and virginal 18 year old and was thrilled to learn that I would be sharing a two-man tent with a junior pastor in training named Bryce. The rest of our group were in three large, 8-man tents, but we were the odd men out and housed in a two-man. Bryce was a young seminary student, handsome, fit, and I really liked him. We were driven to the put-in point by the outfitter and would paddle and portage back to the outfitter's base camp over the course of the next 6 days.
After the first day of paddling/portaging, I was looking forward to a night of gratifying sleep and relaxation. That was not going to happen, as it turned out.. I was sore and worn out from the day's exertions. Bryce generously offered to rub my sore muscles from paddling and portaging canoes and gear from lake to lake.
He asked me to lie on my stomach and began straddling me and rubbing the sore muscles of my back and shoulders. He was wearing nothing but his shorts, and I was in my swim suit. I was in heaven, having this 30-something seminarian rubbing my back and shoulders after a days' toil and labor. In short order, it became clear that he was aroused. I could feel his hard cock rubbing on my ass as he massaged my sore shoulders and back. I played dumb for a time, but it quickly became too obvious to ignore, and I knew I had to make my move.
I was nervous as hell, being inexperienced and only 18. I pivoted my upper body to face him, and asked him "should I be flattered"? He seemed briefly flustered, so I decided to swing for the fences and I tentatively extended my arm and placed my hand on his growing erection and gently rubbed his cock through his shorts. He started, clearly terrified at the prospect of becoming a clichΓ© church clergy youth predator. I sensed that he needed some encouragement, so I pivoted my lower torso as well so that my erect cock was pressing against his buttocks. Convinced that he was not alone in his arousal, he visibly relaxed.