But of course!

John took the marker eagerly, looking over Miss Kathy's body like a great painter inspecting his canvas. He raised a finger and twirled it, which she recognized as the international sign for "Give us a spin." She turned slowly as John carefully inspected every inch of her beautiful nude form.

Unsurprisingly, he was drawn mainly to her tits and ass. All sorts of perverted slogans ran through his mind, but he really was curious to see what other people would add. He needed to think of something clearly visible that would break the ice, but leave room to build off of.

When Miss Kathy finished her revolution, John uncapped the marker and grabbed her right breast. He took his time, giving it a good squeeze as he wrote "KISS" in all-caps just above her nipple, then grabbed her left and wrote "ME." Obeying his own instructions, John clamped his lips around each nipple in turn, just long enough to feel them both harden in his mouth.

John stepped back to admire his work. It was good, but something was missing...

"Pull them apart for me," he ordered and Miss Kathy carefully obeyed, holding herself from below to avoid smudging the ink.

John savored the feeling of being obeyed for a moment, then set to it again. He ran the marker carefully down her sternum, curved out and around just below her tit-line, then went back up between them, finishing with an oblong loop at the base of her neck. A few wrinkles, some hairs, and a frenulum later, voila! The greatest dick John had ever drawn was peeking out of Miss Kathy's cleavage, spraying black lines of cum across her upper chest.

Miss Kathy gave an impressed hum as she looked down at her newly decorated chest.

"I like the way you think, John! I love a good titfuck. I'd offer to prove it, but I don't want to risk smudging your artwork."

"I'll remember that," John nodded, spinning Ms. Kathy around and shoving the marker up her butt. "You'll need to keep that with you, and it's not like you've got any other pockets to put it in. Just make sure anyone who uses it puts it back when they're done."

"Y-yes, sir!" Miss Kathy gave a small salute, wiggling her hips a little to get used to the new intrusion. "I can't wait to see how this project turns out. I'll be sure to take pictures every night before my shower so we have a record of it."