Ah yes, the scientific proccess

Excellent performance even the audience is engaged💕

The voyeurs' thoughts, maybe (left to right):

"A profound lack of refinement, but a satisfying display regardless."
"I'm so glad they're finally spending some quality time together!" (oblivious)
"What an admirable display of affection. I daresay I'm quite charmed."
"Gotta say, this is really hot."