The day began like any other. Sunlight crept through the cracks in my blinds, casting dappled shadows on my walls. I stretched languidly, my joints popping from a restless night’s sleep. Stifling a yawn, I pulled on a pair of boxers and shuffled out to the kitchen, coffee mug in hand.
Mom was already there, prepping breakfast at the stove. She smiled at me over her shoulder. “Good morning, Jake! Sleep well?”
“Yeah, nice and sound,” I replied, pouring myself a steaming mug and sliding into a chair at the kitchen table.
We talked idly as we ate – plans for the day, family news, the usual chatter. I had almost forgotten that as of today, things were going to be a bit different around here. My mom was marrying a guy named Frank, and I’d be getting a new step-sister.
I first met Tiffani at the wedding, earlier that morning. She was Frank’s 19-year-old daughter from a previous marriage. I was surprised by how beautiful she was – blonde hair, bright blue eyes, banging body. But I shook off the inappropriate thoughts. This was going to be my new sister, after all. I had to look at her in a familial way, not a sexual one.
The reception was a drunken whirlwind of toasts and dancing. Tiffani and I bonded a little, cracking jokes and bringing each other fresh cocktails. I was surprised by how easy and fun she was to be around. By the end of the night, we were laughing like old friends.
The next day, things began to settle into our new family dynamic. Tiffani moved in her remaining boxes and bags. I offered to help her unpack. As I hauled heavy suitcases up to her room, I couldn’t help but notice how her tight jeans hugged her ass. I blushed and looked away guiltily. What was wrong with me, checking out my own sister like that?
I avoided Tiffani for the next few days, trying to get my inappropriate thoughts under control. But it’s hard to do that when you live with someone, and see them constantly, often in their pajamas or a towel. I felt like I had my head in the gutter all the time.
Until one evening, I was coming up the stairs just as Tiffani was coming down from her shower. She had on just a tiny terrycloth robe, tied loosely. Her nipples were visible through the fabric, and her long legs were bare from the hips down. I froze, wide-eyed and hard, my whole body reacting to the sight of her.
“Hi Jake,” she purred, stretching her arms above her head in a long, languid motion. The movement made her robe fall open even further. “Long day, huh? Don’t you just want to relax?”
She untied the robe slowly and let it drop to the floor. I couldn’t help staring as she stood there, completely naked, allowing me to drink in every inch of her perfection. Her breasts were large and round, with pink nipples. Her stomach was flat and toned. And between her legs, her pussy was a perfect pink triangle, glistening with arousal.
“Tiffani…” I said hoarsely.
She smiled, that cat-that-got-the-cream smile. “I know you’ve been thinking about fucking me since the wedding, Jake. I’ve been thinking about it too. So why don’t we finally do something about it?”
Then she turned and walked down the hall toward her room, an extra sway in her hips, looking at me over her shoulder with a coy, inviting smile. My cock throbbed in my pants. I knew I shouldn’t, but I followed her anyway.