Mine was this image
I liked the aesthetics of it and added it to the room I had in EmuVR as a poster. Unfortunately I lost it when a drive died. I had tried searching online for it but searching for lewd cyberpunk wallpapers wasn’t working. I finally stumbled across it in a lewd wallpaper thread the other week.
Two women chat while walking and one is thanking the other for taking her along to the gym - they proceed to a room with exercise bikes where another woman greets them while riding an exercise bike with a dildo strapped on the saddle. Thankful person is flabbergasted, but told not to be shy.