Ruined Her Top

Before my first girlfriend and I quit pretending we were wholesome and went at it whenever we had a spare moment, we ostensibly fooled around a lot with masturbation. My girlfriend loved to hug me at random moments, slip her soft hands into my pants, and give my cock a few good pumps before going on like nothing had happened. I loved it because of two reasons: the first is obvious, the second is because I had recently found out from a friend, after dating her for maybe a month, that she was an absolute fucking slut with her boyfriends once she started to get intimate with them. Information such as this sets off fireworks in a man's sex-addled brain, and I was no exception. I was salivating with anticipation for something more whoreish than half-fulfilled handjobs. Once, after driving her back home in the humid summer at around two in the morning, we decided to take a quick walk down her dark street before I finally kissed her goodnight and officially dropped her off. The walk was an excuse to fool around, of course. She was wearing a tight tank top and cutoff jean shorts. Soon enough, we were facing each other with our tongues dancing and her hands were down the front of my shorts. So soft and creamy. After the requisite four or five pumps she took her hands out but continued to stroke my cock from the outside. Her tempo sped up, and I started to rock my hips back and forth. "I gotta cum," I groaned, but she just looked up at me with that teasing smile and said "No." This slut could cocktease with the best of them. And I could have died of disappointment right then and there, but she continued to smirk as her hands stroked my erection through my shorts. I numbly wrapped my hands up in her hair and the both of us looked down at the active pair of hands, hers, as they expertly worked my cock through the fabric of my shorts. As she did this I noticed that her tank top, a designer thing that looked rather expensive, was a bit too tight on her and failed to cover the last inch or so of flesh between its hem and her sexy little shorts. The bare flesh beckoned me, and the seeds of a depraved idea formed in my mind. Before she could say anything I had unzipped my shorts and slipped my cock up between her tummy and her tank top. Her skin was cool and unbelievably soft. I pulled the hem of her top down over my cock to the hilt, and leaned forward into her, wrapping one arm around her back and slipping my other hand down the back of her shorts so I could squeeze her firm, bare ass. Her head rested on my shoulder. I could tell she was shocked at what I had done, and stumbling over words that she never managed to say. Nevertheless I slowly started to grind into her, rubbing my cock up and down on the oh so soft and tender skin of her stomach, right above her navel. It felt absolutely wonderful, like warm living silk. In a few minutes I was pumping hard and fast, and when I looked down I saw the bulge of my cock sliding up and down inside her tank top. The material was fuzzy, and the sensation was a perfect compliment to that of her flesh. So there I was, fucking my girlfriend's tummy under her tank top in the middle of the road at night, the both of us standing up, she in a bear hug with her head on my shoulder. As I started to stroke faster and groan, losing myself in the sensation, she let out a trembling whisper. "What if you come?" So I let her have it very bluntly between moans and gasps. "I'm going to make a mess all over you." Before she could protest, as she understandably would because of the stickiness coming her way, I pulled her to me very tightly. She let out a gasp as the first spurt of cum fired up onto her chest from under her top. I let out a heavy groan, and ground my hips against her again. Another thick cummy wad squirted from her tummy to her cleavage and spattered everything in between. With each successive spurt, I drenched her from her tits down to her shorts and soaked her top from the inside out. I continued to rock my hips against her as I emptied the contents of my balls onto her smooth skin and designer clothing. My cock seemed to pump and pump for ages, and as I looked down from above I saw a gooey spurt rocket between her breasts and stick above the neckline of her top. But that was the last good spurt, and I was spent. It had happened so quickly in reality but had felt like years of ecstasy. Her soft skin had drained me completely. I released her and stepped back a bit. My dripping cock slipped out from under the soft fabric of her top. It was soaked, literally soaked, from the neck to the hem, and it clung to her skin tightly. Cum dripped down her tummy and spilled over the edges of her shorts. It was a real monster load, and when I finally looked at my girlfriend's face I saw a mixture of awe and disgust in her expression. I had hosed her (and her designer shirt) down without even really asking. As we walked back to my car, she stripped out of her top and wiped up my cum with the dry half. She was mad but shot me with a horny smirk anyway. It was then I realized that she had been rocking her tummy against my cock, almost imperceptibly, because she probably felt guilty about it and wanted to blame the sticky mess on me completely if it happened. She had jacked me off without her hands, which I then remembered had been at her sides the entire time. So fucking hot.