A new type of (naked) workout

"I have a new type of workout for you." said John while setting up a video camera, "I hope you don't mind this, I film all my clients to show them progress later."

"Oh that's fine," Gwen said, "As long as it doesn't end up in the hands of the press." She laughed at her own attempt of a joke. John did not. "So what's this new workout?" She asked, trying to move on from her failed humor.

"Well a new study shows that working out naked can be up to four times as effective." John said, using his power to convince her of its legitimacy.

"Oh really? Like, completely naked?" She asked, a little nervous about taking her clothes off in front of a stranger and his camera.

"Well you should keep your shoes on." John said, not reassuring her at all.

"Well if you're sure it will be more effective, I'll try it out." She reluctantly pulled her shirt off, over her head, followed by her sports bra. John starred at her small, but still fairly perky tits to make her more uncomfortable, as she sat down to remove her pants. She slipped her pants and panties down as one, then pulled them over her shoes. She then stood up, trying to appear confident, exposing her neatly trimmed bush. "So how do we start?" She asked, confidently.

"We start by stretching, come here." John gestured to the point in the floor in front of him. They then began a stretching routine, which mostly involved Gwen bending over and rubbing her ass against John. He helped her bend, pushing her head down, holding her pony tail. "Very good." He said, "Now, which area of your body would you like to focus this workout on?"