A personal ad I ran on Craigslist:
Are you married or str8 & curious about letting a man suck your cock? - 49
I'm married, but I was curious about what it would be like to suck a cock. So I placed a CL ad. After screening through all the replies and exchanging some pics and very hot and naughty emails, I met this married man at his house while his wife was away. We were both kind of nervous, but I had told him about what turned me on. So we went into his bedroom and he took off his pants, exposing his cock, which was already starting to stiffen, and asked me to take off my pants too. I was a bit unsure about how to start, so he put his hands on my shoulders and pushed down a bit, and said, "Be a good girl and kneel down for me." So I sank to my knees and tentatively gave his cock a lick. He whispered, "Suck it. Wrap your lips around my cockhead and please your man." So I did. It felt kind of rubbery, and it felt both weird and incredibly exciting to be on my knees with a rapidly stiffening cock in my mouth, my first time. I kept licking and sucking and bobbing my mouth around his cockhead and the sensitive area all around the rim, getting totally turned on by giving such pleasure to this hard man. He groaned as I rapidly flicked my tongue, his cock rock hard by now. He grabbed my head with both hands and started pushing his shaft inside my mouth and said, "Deepthroat me. Take all my cock down your throat." I was so turned on, I was ready to do anything he asked, so I grabbed his firm butt and pushed his big cock all the way inside. It hurt a bit when his cockhead hit the back of my throat, but it felt so sexy and exciting to have my mouth and throat stuffed full of his meat, to be treated like a girl and have his hands pushing on my bobbing head as he thrust his cock again and again inside my mouth, groaning and moaning and saying, "What a good little cocksucker you are, such a good girl, take it deep, take all my dick inside your dirty little mouth."
I had to pull off and catch my breath, looking up into his glazed eyes full of lust, and then he said, "Can I fuck your ass?" I hadn't planned on that -- we certainly hadn't discussed that in our emails -- but I was so turned on that I nodded "yes", then said, "But only if you use a condom."