I am a very sexual person, and have been masturbating since I was very young. I have always enjoyed it, and enjoying touching myself and getting myself off.
One time, my girlfriend had stayed over and the next morning, after she left, I hopped on the Internet to look at some porn sites and get off. I love the smell of pussy and asshole, and love to smell my girlfriend's. Well, I found one site that had a picture of a girl's pants partway down and her asshole being spread apart. This made me really horny and I began stroking myself. I imagined this was my girlfriend's asshole and that I was smelling it. Streams of pre-cum were dripping down my shaft as I stroked it. As I felt myself getting a little closer to cumming, I looked around for something to come into. That's when I realized that my girlfriend had left her thong from the night before.
I grabbed it and immediately began smelling it. My girlfriend usually has a really wet pussy, so when I picked it up I could see the white juices on it from the day before. I inhaled right there while looking at the picture and lost it. I put the thong to my cock, and shot spurt after spurt of thick white cum all over the crotch. There was so much, some dripped onto the rug and into my hand. After I stopped cumming, I brought the thong back to my nose and smelled my cum mixed with her pussy juice.
Surprisingly, I got hard right away again and looked back at the picture. I began stroking again, using some of my cum as lube. I imagined opening my girlfriend's ass and smelling her asshole and pussy scent. In just a few minutes, I could feel another orgasm coming. I took the thong and shot another huge load of white cum into it. Satisfied, I smelled the thong again. That was one of a few times I had two orgasms so quickly together.
The next day I went to her place, and brought the thong with me. It was still damp from the day before, and it still smelled a little bit like my cum, but I could really smell her pussy. I inhaled one last time, and threw it into the laundry. I will often smell her panties and use them to get off, both by smelling them and cumming into them.