Shove her into the crowd

In your considered opinion this shouldn't be a spectator-sport. You speed up, zip in behind the knight, and move her into the center of the mob, before getting clear and finding a good vantage point.

Finding herself stuck in the middle of the crowd, the warriormaiden squeels, and the people surrounding her give appreciating jeers. She's quickly beset by grasping hands from all directions, all trying to cop a feel whereever they can. Embarrassed and humiliated to be publicly groped in her fancy underwear, she spins and turns, trying to evade and shake off people's hands.

Soon enough though, some aren't content to just touch her bare skin or pinch her behind, but a hand or three slip into her panties in various places, and she struggles to keep her underwear on her ass while trying to get free. Some of those hands are making themselves way too comfortable down there.

Suddenly, she feels a telltale pinch on her upper back. Her bra slackens around her breasts, before getting jerked away completely by someone behind her, allowing her boobs to bounce wildly, to the utter delight of the crowd.

You hear a woman in the crowd yell "Thanks muhlady for the fancy lingerie!" and see her wave the bra around. It turns out not just the men are perverts who can't keep their hands to themselves.

The knight clutches her breasts with both arms, but she can't stop people reaching over to grope parts she leaves exposed, or slipping their fingers underneath her arms.

She squirms and squeels in abject humiliation.

"Stop! Don't touch me! Give my bra back!"