I had a friend once - who was better at explaining to me the currency of breasts. Right after she hooked my (extremely awkward) 32 year old self with a day shift gig at the strip club, she explained.
Grabbing the right one she said that breast had taken her to Europe for a whole summer. The left, she explained, was the ticket to a Central American trip of self-exploration and other realms.
In this case, the currency was cold hard cash. She just ascribed X number of dollars to each one - based on the trips she’d taken and their costs.
Now? That friend of mine runs a technical department at a startup. I think she’s moved on to other kinds of currency at this point, because boobs don’t do so much in the tech world. Lol.