The act of laying 2 girls on top of each other chest to chest spreading both their legs and eating them both out alternating them both top to bottom.
Guy 1: Yo what you do last night
Guy 2: O you know i just ate out Claire and Allison Staircase style. That shit was off the hook.
Guy 2: O you know i just ate out Claire and Allison Staircase style. That shit was off the hook.
by Theo Woodhard November 3, 2010