I was taking a nap in my living room one afternoon, covered only by a thin blanket on the sofa. It was very hot, and I was sure my roommate was away, so I forgot all about clothes. I was wearing a sunblocking mask due to the light filling the room. My blanket must have been at my waist, because I could feel the breeze from the open window caressing my nipples. Then suddenly, I got a shock.
Out of nowhere, my nipples were being pinched and teased. I jumped a little at first, but then relaxed back down as I felt soft feminine hands on my shoulders. Her fingers began to repeatedly close over my nubs, tweaking them, tapping on them, and tugging them. When they were erect and elongated, the started to flick them very rapidly. From her breathing I could tell she was getting real excited. I was just getting soaked from the element of surprise and intrusion.
She tugged harder on my nips and pulled them upward; as she held them stretched out in a pinch, she began to move her fingers in circular motions. This was starting to arouse me no end, so I couldn't help but moan. At that, she started to suck hard on one nipple, as she pinched and rubbed the other. I was beginning to lose control, my body spasming, hands burning in anticipation to remove the facemask. She flicked her tongue across my nubs mercilessly and I was getting orgasmic. As I threw my head back, my mask slipped off.
My new roommate. Naked. Her large firm breasts swaying above my head. I took her nipples in my hands and pulled them toward my mouth. She gasped and instinctively positioned herself over me. We stayed sucking and rubbing tender nipples till dawn.