Judy thinks she will have no problem beating her older sister Sophie in a fight. First she challenges her to an arm wrestling contest to see who the strongest sister is. Next they remove their shirts and do bare fisted battle in the office exchanging fierce belly punches to each other's soft tender bellies. Judy is knocked to the floor at Sophie's feet and they decide to continue this unsettled battle in the ring.
Entering the ring wearing nothing but sheer to waist pantyhose, the sisters battle it out belly punching, wrestling, scissoring, tit squeezing and smothering until the younger sister Judy proves to be no match for her older siblings. Beaten and humiliated she is forced to worship Sophie's sweaty panty-hosed feet and admit who is tougher.