Wife's Friend's Knickers

This is a true story that happened 3 years ago. My wife's best friend Lucy (not real name) was between moving home but her new place wasn't available for a month, so it was agreed she could stay with us.  At the time Lucy was 34 and single. I would describe her as medium build with long dark hair and quite pretty. I must confess to having masturbated whilst thinking about her in the past so having her stay with us was exciting.  The first 4-5 days passed without seeing much of Lucy due to differing work schedules. However on that Saturday I was home alone as both Lucy and my wife both work in hospitality resulting in regular weekend shifts.

Once they had both left for work I couldn't resist the urge to explore Lucy's room. All of her belongings were stored in our garage except for a suitcase she had in her room. I was instantly drawn to the bedside drawers hoping to discover a vibrator but no such luck just underwear and socks. Whilst seeing her lacy knickers increased my arousal they lacked her personal touch. So there was only one thing to do. I opened the wardrobe and took out her suitcase and placed it on her bed. With my heart pounding with excitement I unzipped it and flipped it open. JACKPOT. There in front of me was the vibrator I hoped to find along all her dirty laundry including most importantly 5 pairs of worn knickers. I examined them and noticed one pair in particular were particularly damp and upon closer inspection it was obvious she must have slept in them and taken them off that morning as they had the unmistakable smell of female cum which I have had the pleasure of experiencing with my wife's knickers after she masturbates with her hand inside them.

So here I am looking at Lucy's vibrator that she had probably used the previous night before putting her knickers back on once she was done which had absorbed her juices. Taking them to the bathroom I inhaled her scent whilst stroking my cock to an explosive orgasm. Over the next couple of weeks I repeated this whenever I found myself alone. I always wondered if Lucy ever suspected that I used her knickers as she kept her suitcase layed flat meaning she could be aware where things were placed inside when unzipped. However when I went in I made no effort to make sure I left things in the position I found them in and on one occasion I may have left it unzipped when I heard my wife's car pull up. On that occasion my wife agreed to finger herself in front of me whilst we had the place to ourselves at the same time sucking my cock having no idea that 10 minutes previously I had a pair of Lucy's worn knickers wrapped round it whilst wanking off.