After a while of watching telly Annabelle's feet have remained exactly where they are. On your lap, just above your dick. You try not to move around and you try to avoid making it obvious that you're hard. Any wrong movement and she'd know, assuming she doesn't already know. It doesn't help that while watching telly she's being moving her feet around shuffling about. Sometimes even digging her foot further into your crotch.
However she's being relatively still for a while and she hasn't said anything. After a while you get the courage to sit up a bit and lean over to check on Annabelle. You see her layed there, looking peaceful, eyes closed. You see this a perfect opportunity as she seems to be asleep and her feet are right there on your lap.
You gently lift her feet up and shuffle out to the side and puts her feet back down on the couch. You then gets on your knees on the floor next to her feet on the couch. You lightly grab her ankle and move her foot closer to the edge of the couch and slowly lean over to take a smell of her feet. You're immediately hit with a wave of the smell of unwashed sweaty feet. It's obvious she hasn't cleaned them in a while but you start to get excited by this. You grab her other foot and pull it over to you and bury your face in her feet. But as you takes a sniff this time her toes wiggles and hits him on the face. He then realises that she's not asleep and he is hit with a wave of a cold feeling that travels down from head to toe as he is on his knees and frozen in fear.
"Something wrong" you hear her voice and it echoes through your brain knowing you've just being caught, caught smelling your sisters feet and you to make it worse it was while you thought she was asleep. You remain frozen in fear and she laughs as she sits up looking at you there on your knees at her feet.
