You let them do their thing

— MARK! — You shouted into his ear. Mark looked back at you: Inquiring, confused and slightly irritated, but he looked at you — I want to go too. I'd like to... To see how my Mom perform...

Inexplicably, a bad feeling started growing in your stomach; letting your Mom go somewhere with Mark weirded you out, so you tried hiding it by making it look like you were interested in now their project.

...

You arrived with your Mom at the studio. Mark was already there preparing everything. Once you greeted him, he started explaining:

— I had an inspiration for this project after thinking about how beautifully, how passionately men and women entangle their bodies when they have feelings for each other. The lust, the emotions that makes them bond, the feelings that grow so strong that they end up in a sublimation of physical expression… To try and capture those moments…

He continued his monologue for what felt like an eternity. At least for you. Your Mom was astounded, fascinated, taken away by both his speech and drive.

— So... I'd like to ask you, Ms. Anon… To please take your clothes off... For this is a in state of nature art project!

You felt like you needed to say something. Stop this non-sense. Protect your Mom's privacy. Her honor, her body...
But before you could react, your Mom answered.

— Okay! Where's the changing room?

— Umm... — Mark said — I think... I think there's no changing room... I mean… If there’s one, I didn’t booked it either…

Your Mom thought briefly — Alright, no problem. I mean, I'm going to be naked either way, right? What difference does undressing there make? — She said before taking her bra off, setting her beautiful, plump breasts free.

The, she bent over, making her curves jiggle, removing all of her clothing. She stood there, in front of you and Mark, naked. Your gaze was nailed onto Mark's face. He felt it, as he avoided looking at your Mom's voluptuous and sexy body directly…

…But he still had to talk and look at her; he awkwardly and hesitantly started telling your Mom how to pose. At first they were just photos of just her…

“Didn’t he say something about entangling bodies or something like that?” You wondered.