A man is walking down the beach

He see's a sign that says, "$50 blow job, while singing".

He scratches his head and decides, what the heck. So he goes in, there is this pretty attractive woman, so he puts down his $50. She starts giving him an amazing blow job and right in the middle, she pipes up with this incredible singing voice.

The man leaves and goes home. Later that night, he just can't figure out what's happening. So he goes back the next day and puts his $50 down. She turns off the lights, another amazing blow job and half way thru, the singing begins. It's definitely not a recording. It's her voice for sure

He leaves but can't shake the confusion. So he deduces a plan. The next day he returns and puts down his $50. She turns off the lights, once again, gives an amazing blow job and in the middle, she starts singing.

Then he reaches over, turns on the lights and there is a glass eye ball on the table.