Keep sliding your hand up her leg.

Maybe she's finally going to let you touch her pussy. You're not going to give up this opportunity.

As the movie continues, you gradually move your hand further up under her dress.

You are almost there when you feel something unexpected. Plastic. Confused you move your hand across her crotch. There's some sort of plastic covered padding between you and your goal.

Sarah gasps and pulls your hand away but it's too late.

"Are you wearing a diaper?" you whisper.

She doesn't look at you but answers with a nod.

You keep your hands to yourself and watch the remainder of the movie in silence.

Sarah is silent as you leave the cinema and get into your car.