There’s something specially sexy about the Grable pose.
Her back is to you. But she’s looking over her shoulder at you and smiling.
The only logical interpretation of this illogical pose is that she is happily inviting you to stare at her butt. She just like, “Have at it.” There’s no faux candidness, like you’ve stumbled upon her while she’s luxuriating in nature. There’s no sultry glares, like she’s engaged in the deadly serious business of titillation. Just a fun “Oh you like cute butts? Enjoy!”
Three components of the Grable:
Stand.
Glance over the shoulder.
Smile.