"Anyway, I'm so tired!" She says, stretching out her arms and dropping down onto the couch. She does the same with her legs and gives you a look. "You know, I've been walking for quite a way, y'know."
You stare at her, waiting with a mixture of trepidation and excitement for what she may suggest next.
"Rather than smelling my feet, like you did all those years ago," she lets out a giggle. "Why don't you rub them instead? C'mon, they really ache from walking around for so long!" Your stepsister turns around at an angle so that her socked feet are stretched out on the end of the couch.
Her directness, plus the memory of smelling her feet makes it too hard for you to say know. You walk over to the couch and place her feet in your lap. At least the socks are still on, so it shouldn't be too arousing for you...
"Take my socks off first," Karen says, snuggling into the couch, as though she's read your mind. "My feet are really are sore!" She does a mock pout at you.
Sighing, knowing that you can't say no to her, you slowly peel off each sock, gulping when a strong, cheddary stench fills your nostrils. Holding one bare foot in both hands, you start kneading away at the centre of her sole, pressing your thumbs into the various bits of skin that you think look most sore.
Your stepsister moans appreciatively. "Hmmm, you're good at this!" You blush a little; you must have given Tora at least fifty foot massages during the times you dated her. "Seriously, you're like a foot expert! I guess making you smell my feet all those times did you some good, right?"
"Uh...yeah," you reply, distracted by the fact that Karen's feet are really pretty. They feel so soft in your hands that you can't help an erection begin to build.
"I mean, making you smell my feet was a good lesson for you! It must've made you tougher, right? Either that or you lost on purpose just to smell my feet, like a freak!" She laughs at this, while you go completely silent, causing her to raise her eyebrow. "You know, there could be something in that..." She taps her chin thoughtfully.
"What...? No! It's not...I'm not..." You murmur weakly, as your hard-on continues to build, approaching full mast...
Unfortunately, you can't prevent your stepsister from noticing it. At first she looks a little shocked, her eyes wide open as she rests her non-massaged foot on your crotch. Then a smirk begins to form on her face as she chuckles at you.
"I knew it! You have a thing for feet! Man, this is just gonna be too easy..."
What she's referring to is taking over your life. Your stepsister sees it as her right, no - her duty - to take over your apartment, reducing you to her skivvy and errand boy. She takes full advantage of you, not needing to lift a finger or bother getting a job, as she knows you'll do everything you say - partly because she will reveal your fetish if not, and also because you're genuinely enchanted by her feet.
You should never have given her that foot massage! Then again, perhaps this was inevitable - possibly from the very first time that Karen forced you to smell her feet, all those years ago.
Your step sister has well and truly won!