I say ay!
When I was in my mid 20's I was on a long road trip picking up a car in Seattle. I also had a few stops all along the west coast to pick up parts for this car. When I hit LA I was exhausted. I stopped in and stayed with my brother's In-laws. They were gracious hosts and wanted to take me out on the town. I opted for a quiet dinner and a comfortable bed.
The next morning when I woke up to find my brother's mother-in-law naked in bed with me stroking my hard cock. As she stroked me she told me that she just knew that I had a huge cock like my brother. With that she pulled the covers back and gave me a great blow job. For the rest of the morning the two of us screwed our brains out. We broke for lunch, which her husband cooked for us, and then the three of us continued through the rest of the day with a hot MFM threesome.
She was hot 25 years ago, and I have been fucking her ever since. Today she still has a killer body, and she can screw like there is no tomorrow. I would not be surprised if she told me that she was screwing 20 something guys. I do not know a guy that would turn her down.
Last week she joined us at our beach place. Her first night here my best friend, my brother, and I spent the evening screwing her. She loves having us 3 big cocks rotate in and out of her and DPing her all night long.
Who cares what you call them Cougars, MILFS, hot horny women, forget the labels. Enjoy the moment, enjoy your partners, and enjoy the sex.