Make an arrangement with the ticket guy

Blue turns back to the ticket booth attendant and gives him a sheepish smile. "Look, I forgot my wallet and-"

"Sorry sir, you'll have to go find your wallet and come back," the ticket booth attendant answers in the same monotone voice as before.

After thinking for a moment, Blue leans an elbow on the counter and gets closer to the glass. "Look I know we have a bit of a problem here, but maybe my girlfriend could help solve it?" Your eyes widen and dart back and forth between the two men. He didn't say it explicitly but from his tone it's obvious that Blue just asked to trade a physical favor for free admittance.

The attendant gives your body a quick look up and down, then checks his watch. After thinking for a bit he reaches under his desk and pulls out a sign that says "On break. Be back soon." He sets it in the ticket window and motions to your right. A moment later, a door labeled "Employees only" opens slightly and a hand appears, waving you in. The two of you hurry in before someone notices you.

The employees only area looks completely different from the public-facing side. Cheap high-traffic carpet replaces the smooth tile floor. Large florescent light fixtures quietly hum on the ceiling. The attendant grabs you by the hand and pulls you in his direction, stepping over until you are just around the corner from the inside of the ticket booth. You glance back towards Blue and he shoos you away while he leans against the wall and looks at his phone. You're a bit shocked at how nonchalantly he's whoring you out for free museum tickets.