Lets hope they do eh π
I've seen so much finger-play only, so that on it's own holds pretty much zero interest from me. But seeing two girls in love - who is a couple - having a strap-on as a natural part of their love-making, that is something I find highly enjoyable to watch π (I don't mean a strap-on every single time they're having sex, but it being a natural part of their play).
One that gives stimulation to both at the same time is pretty hot π (a la Amy&Jane, and/or Lola, and/or Lexy)