Its transactional, they each have what the other one wants.
Exactly, it happens all the time and not just with celebrities. We've all seen the overweight butt ugly rich dude with the smoking hot wife. No one has to say it, everybody knows the why's, how's and what for's. Both parties are getting what they want from the other. As you stated, it's "transactional".
A really good business friend of mine whose 58 years old, successful, very wealthy, nowhere near "good looking", has a 34 year old bombshell of a wife. She's got two kids from a previous marriage where she was middle class, had a full time job, ex hubby had a full time job and lived as most other middle class Americans live. From paycheck to paycheck. Not anymore. She's a stay at home mom, goes to the gym during the day, shops and does what rich "stay at home moms" do. In exchange, *
my business friend gets great sex from a much younger beautiful woman about anytime he wants.* Both are happy.
*"How do I know?" He brags about it. That's how.