Mea culpa

I remember it was raining that October afternoon, the day's monotony foreshadowing winter. Sitting on the couch facing the fireplace, I looked for at least the tenth time at the Polaroid photos I held in my hand.

One of the young women in the photos was someone I'd never seen before, but the woman kneeling between the stranger's legs looked very familiar. It was my twenty-two-year-old stepdaughter Cassandra, who'd come home from college for the weekend. Though in most photos Cassie had her face buried in the other woman's exposed crotch, there was no doubt who it was. Nor about what she was doing, either.

Though shocked by the photos I'd discovered hidden in my stepdaughter's old drawer, I felt a strange yet not unpleasant fluttering deep in my belly as I looked at them.

Sighing, I leaned my head back on the couch and closed my eyes. It wasn't that Cassie didn't date men, I thought. The phone we'd bought her years ago rang constantly when she was home. Almost always when I answered, it was some eager boy on the other end asking for her. Of course other women called too, but Cassie had so many friends I never gave it much thought.

I opened my eyes and looked at the photos again. The woman my stepdaughter was performing cunnilingus on was very pretty. Short blonde hair and a sweet face, she sat on the edge of a chair with her skirt pulled up to her waist, legs spread wide. There was a hint of a smile on her face, as if she was thoroughly enjoying what Cassie was doing to her. She had the fingers of one hand tangled in my stepdaughter's brown hair, as if encouraging her to continue.

I vaguely wondered who'd taken the photos while unconsciously unbuttoning the front of my jeans. Barely aware of what I was doing, I stared at the revealing images as I slid my free hand beneath the elastic waistband of my panties. Passing through my pubic hair, my fingers curved into the hollow of my crotch and began lightly stroking the swollen lips of my pussy.

My breathing grew heavier when the tip of my index finger found the knot of my clit, and suddenly I was masturbating in earnest. So absorbed was I in the sensations my fingers elicited that I didn't even hear the front door open when my stepdaughter came home. The first thing I noticed of her presence was her laughter.

"Stepmom? In broad daylight?"

I jerked my hand from my panties and sat up abruptly on the couch, clumsily trying to fasten my jeans. My eyes nearly popped out of my head when I saw the blonde woman taking off her coat by the door.

"Cassandra," I said weakly, "what are you doing home? I thought you were with your friends!" I glanced at the wall clock. "It's only twelve-thirty… why are you back so early?"

"Relax, stepmom," she said, laughter in her voice. "We canceled plans because of the rain."

Then, as she approached me, she saw the photographs I still held in my hand. I watched her face pale and the laughter die.

"God… how did you find those photos? I thought they were well hidden." She sat beside me on the couch and took the photos from my hand. Then a look of understanding lit up her eyes. "Oh wow… did they turn you on? These pictures of Barb and me got you hot. That's why you were here doing the old 'finger mambo quickstep,' right?"

I knew I couldn't lie my way out of this. Everything my stepdaughter had said was true.

"Yes," I admitted, feeling a blush spread across my face. "I guess they did turn me on, sweetheart. But Cassie… are you… I mean… you…"

"That I'm a lesbian?" she completed the question. "No, just bisexual, I guess. I like men too, but I enjoy variety. Barb and I sometimes play around like in the photos. Hey! That reminds me… why were you going through my old stuff?"

"I wasn't snooping, sweetheart!" I protested. "I was looking for things to donate to Goodwill. I found the photos by accident."

Suddenly I noticed Cassie looking at my lap. Glancing down, I saw I hadn't been very successful at fastening my jeans. They hung open, showing my panties and the shadowy triangle of my pubic hair clearly visible. Still, I did nothing to cover myself.

"That woman in the photos," I heard myself say. "Barbara? She's… she's very pretty." Even as I spoke those words, I couldn't help looking down at the front of my stepdaughter's sweater. I could see the small mounds her nipples made and noticed she wasn't wearing a bra.

"She's very pretty," I repeated, as a shiver ran down my spine and I reluctantly looked back up.

"Yeah," Cassie whispered, locking eyes with me. "She is."

She slid closer to me on the couch, casually resting her hand on my denim-clad knee. "I could call her if you want. She only lives a few blocks away. Would you like me to invite her over?"

My heart hammered in my chest and I could barely speak. "It's still raining. She'd get wet. Besides, I… I…"

Whatever I was going to say died when Cassie leaned in and kissed me, taking me so by surprise I didn't resist in the slightest. Instead, I found myself responding eagerly to the kiss, parting my lips to let her tongue plunge into my mouth.

I mewled like a kitten as her hand moved from my knee to slide inside my open jeans, her fingers lightly brushing the swollen, sensitive lips of my pussy, only the thin material of my panties separating our flesh.

Then, with a deftness that amazed me, Cassie slipped her hand inside the crotch of my panties and a finger plunged deep into my hole. I could hear myself moaning with pleasure as my stepdaughter began finger-fucking me and I sucked her tongue even more desperately…