A Locked Door

"Well, well," Blake said. "Looks like there's a locked door here."

She examined the invisible door. "Ah, I see!"

She stripped out of the tank top, allowing her breasts to flop free. She then bent at the waist, presented her breasts to the 'door', and twisted her body. A 'Click!' sound manifested from seemingly nowhere.

"Gotcha!" the half-naked Blake said triumphantly. "Come on, kids! Let's get that treasure!"