Make them wrestle.

Sammie and the foreign girl are both trying to hide behind each other, pressing their bodies together as they try to conceal their intimate secrets from the teasing spectators. It's an amusing sight, but you know a way to make it even more amusing.

You separate the two women by a couple of paces, then drop a skimpy little lace apron on the ground between them. It's not much, just a scrap of translucent cloth, but it'll cover the tits and pussy of whoever manages to get it first. You take a moment to cover the two girls with oil, rubbing it into their beautiful skin until they gleam.

You start time up again. The two women spot the apron at the same time. They're still for a moment, calculating their odds. Then they spring into action, leaping for the apron, trying to tear it out of each other's hands. In no time at all they're rolling around on the soft ground, sliding out of each other's slippery grip, squeezing each other and rubbing their naked bodies together, struggling to get the upper hand. The boys are wearing big, stupid smiles on their faces as they bear witness to the incredible sight.

"Go, Sammie! Beat that girl!"

"Shut up!"

"A copper piece on the foreigner!"

"Stop looking!"

"Enjoying yourself, Sammie?"

"Go away! When I get my hands on you I - mhmmf!"

Sammie's face blazes red and her slim, nubile buttocks flex as the foreign girl gropes and fondles her, trying to pin her to the ground. They seem about evenly matched. She's on top, and one of the boy seizes the moment to leap in and give her unprotected posterior a firm, open-handed slap.

"Always wanted to do that!"

"Damn it! I'll get you for that!"

You watched for a while, tremendously entertained, until it becomes clear there's not going to be an obvious winner any time soon. Both girls now seem to be regretting their decision to wrestle naked in the public square, instead of just running away, but neither one's about to give up and let the other win. Maybe you should see what some of the other women you stripped are up to. A little ways behind you the area is still sheer pandemonium.