We've had a bit of fun responding, but going back to your original post....
I'm sure most of us have wanked to many different scenarios over the years.
I notice you're in your twenties.
When us oldens were your age we didn't have porn so we relied on our imagination which could include anyone we chose.......work colleagues, friends, Bridget Bardot, even old Aunt Mabel with the massive tits.
We might even fantasize about our girlfriends, wives shagging other blokes.
My guess is that since the introduction of porn we've not needed to use our imagination, and more and more relied on porn, eventually reaching the stage when we become reliant on it to climax.
So you wank away while you can to anything you like. Your imagination is limitless.