I did Japanese twins at Ginza a few years ago, but not at the same time.
It was like the Austen Powers scene with Fucky You and Fucky Me. LOL!
They were identical. The only way I could tell them apart was one had braces and one didn't.
The one with no braces was wilder, but they were both fucken crazy wild. The no braces one was no limits, crazy, BDSM everything on the menu.
They then left Ginza and advertised privately Japanese BDSM doubles for around $1000.