My partner and I just got home yesterday from a weekend in Palm Springs. We were there for a big birthday party and were staying with acquaintances (good friends of friends). There was another couple (older, 69 and 71) staying at the house in addition to the owners. Everyone very nice, we all got along, the 69 year old is a major flirt, constantly teasing and talking about cocks and sex. So after the first day it is obvious that the older couple no longer have sex (or much anyway) and the 69 year old plays around. They were very nice, my partner always teasing with him, etc., and it became clear he wanted to play around with us, he made sure we knew he had a big dick, even made sure we "accidentally" saw it, lol. It had nothing to do with age, we are both mid 50s, or appearance, he was nice looking, but we just don't fuck outside our relationship, we have great sex and enjoy each other. So the last morning I get up early to pee, as I pass through a small hallway to the bathroom I get a glance of Chuck going to the hot tub from his room naked with a big boner hanging. I'm sure it was quite intentional on his part, which was fine because it got me horned up on my way back to bed. Feeling frisky, we decided to mess around. After some initial playing we decided to fuck for a while, on the way to get lube I casually stopped by the window to look out and carefully left the drapes slightly open. While pumping away on my partner from behind I glanced over and saw Chuck outside watching. I couldn't tell if he was jacking off, but he was certainly having a nice watch -- I even stepped it up a bit, turned so he could have a nice view, and made sure we went for a "long ride" that morning. On the flight home, my partner mentions that the curtains were open this morning and he thought he saw Chuck outside (I should have pushed his head further into the pillow, lol). I gave in and admitted that I had seen him earlier and intentionally opened them, maybe to give him a little "show". My partner said that was wrong and if we weren't interested in having sex it was simply teasing him and not nice. I didn't view it that way at all. The question: Now I'm not saying I was Mother Theresa doing charity work, but I viewed it as maybe just a nice cheap thrill for Chuck if he wanted to have a watch, no harm. Was it that? or was I being a misleading tease?