I had somewhat of a similar situation. My dad and I went on a family men's vacation with the uncles and nephews, cousins, etc. We were all sleeping in tents and had a community shower on the grounds. My dad and I were sharing a two-man tent which was a bit tight for us, no spreading out. It was a long really hot day and we didn't take a shower before dinner. We all agreed to eat and hit the tents. After everybody turned in for the night Dad suggested we go shower. I agree, I thought a shower would cool us down, and I wanted to see my dad naked. I hadn't seen him naked for a few years. When I was younger I lusted to be naked with him and would sit while he bathed and talked to him. His naked body, his cock always was so arousing.
We quietly walked to the showers and undressed. I looked at him and saw an older guy who looked amazing with a few extra pounds and gray chest hair. His cock still looked delicious. We got under the heads and let the water rush over us. I watched as cascaded down his body. I looked at him and said I would wash him. He tried to squirm out of it, but when he felt my hands on his back, he relented. While washing his backside, I said I like touching bodies and love massaging them. He asked if I liked touching men. I told him I did. He didn't immediately respond, but then said he'd like his front washed. I was hard, the feel of his back and butt was so arousing. I was curious how he would feel about seeing me aroused. When he turned to face me his cock was just as hard as mine.
For some reason, I didn't want to look at him, I didn't want to look in the eyes. So I soaped my hands and began washing him. Again he felt amazing. My cock was so hard. Just before my hands went to wash his cock he said something about how we both were really enjoying the touching. I reached out and touched his cock. It was so hard, his balls hung low. I cupped his balls and washed them and then began washing his cock. His cock was just so perfect in my eyes. I was so tempted to kiss the head. From my knees, I looked up at him and he asked if I was going to finish what I started. I knew he meant are you going to suck my cock. I nodded. There's more...