My sister’s secret

Never thought I’d tell anybody about this, but …

My sister is three years older than me. When I was in college, she already had a job as an office assistant and had her own apartment. I still lived at home; she gave me a key to her place so I could escape if I wanted. We had a very good relationship, with open discussion and no secrets (so I thought!). Her roommate was a brown lab that she adopted from a shelter.

Most weekends I would go over to visit her, but on weekdays I was busy with school and friends, and she was busy with work, so I rarely dropped in. One night during finals I was pulling an allnighter but having trouble staying awake. Around 2am I decided to make the trek to my sister’s place for a change of scenery.

I assumed she was sleeping, so I snuck in quietly. I could hear the television on in her bedroom as I settled in at the kitchen table. Then I heard her making little noises. They didn’t sound like sex noises; my first reaction was that she was having a weird dream or something. but they continued for minutes and minutes, so I went quietly down the hall to see if everything was cool.

The light from her television lit the room dimly and her door was about half open. When I peeked around the door jamb, this is not what I was expecting. She was fully naked, on top of the bed, flat on her back, fat ass wriggling, knees in the air, legs wide open, large breasts heaving, and the dog’s head between her legs, licking away. The little chirping noises were like squeaky gasps. My sister is a bit overweight (hence the fat ass comment), but she has a nice voluptuous shape to her body and really big tits.