Just a brief, true story about how a painting done with my cock ended up on the girlfriend's wall...
I've always liked nsfw art (and all art in general). I've always been amazed by Marcel Duchamp's Nude Descending a Staircase. I love all the classics: Rubens, Goya, Titian, Picasso, Botticelli, Gauguin, Freud, Schiele. I'll even take in some Hentai from time to time. For some reason, I never really brought this up with any of my partners. I guess I was kind of embarrassed by it.
Then I found myself seeing someone who equally into art as I was. She shared an apartment with a long-term friend, so most of the time we were alone there was sex going on. One weekend she was away and we were hanging out, having some beers, smoking a little weed.
"Have you ever done a nude?" she asked.
"No, not really" I admitted. I had never taken an art class and never tried anything like that. "What about you?"
"I did paint a couple nudes but never from life. I'd get off painting dicks when I was a teen." We laughed. "Well, you can give it a shot any time you want."
"Mmmmmm...I'd like that," I replied. I was starting to get worked up and I could tell she was too. "Maybe we can try painting each other. Not like a nude model, I mean like one of those paint-sex kits."
"Ooooo... That could be fun," she said. "I've never seen anything like that before."
We brought up some picks of those "Love as Art" kits on her phone. All the while, our bodies were getting more and more tangled. Things were going to break any moment.
"You know, we could probably do this with my watercolors," I said. "They're usually washable, it would probably work." Note: Yes, I know this isn't always true, but this was my thought at the time.
"Oh yeah?" she said coyly. Boom! She leans in and we're hungrily making out.
After a couple of minutes of this, we stumbled to her bedroom. We continued to paw at each other. The clothes were starting to come off.
"Do you really want to try it?" she asked. Honestly, I figured we were just going to go at it, but I was still down.
"Sure," I said.
"Me first!" she said eagerly. She scampered to the table, grabbed my paints and paper, then got a cup full of water. My cock was straining to get out. She dropped to her knees and slipped me out. "Oh yeah," she purred.
It tickled as she brushed me. It was a very weird feeling. She would paint me up, then press me, then repeat. In the end, we had a page full of dick pressings. When she was finished, I quickly washed off in the bathroom, then it was my turn. We didn't think it was a good idea to paint her pussy, but I would stroke her clit as I would paint one breast or the other. These pressings were harder to tell, but she let me paint her lips and after we added a number of lip presses, I thought it looked pretty cool.