I attended a function and sat at a large round table with two women either side of me. They both began stroking my thigh beneath the table cloth, completely without provocation and independent of each other.
I recall being slightly drunk at the time but amidst the fog, my biggest problem was how to extricate myself from this little menage a trois and leave each of them feeling they could leave with both of their dignities intact.
:-/
The way you've written that suggests that they were stroking the same thigh.