Amazing! Isa didn't even have her ankles locked, her left foot was just resting on top of her right heel, and she was still crushing Tasia's head between those powerful thighs!!! Love the upper left corner illustration where Tasia is desperately trying to pry apart Isa's thighs with both hands to no avail! Imagine if Isa locked her ankles and really put on the squeeze, OMG! Or converted to a reverse figure 4, OMG!