This was probably the hottest ejaculation I have ever had when jerking off. I am married to a beautiful, sexy woman and we have a great sex life. She has a younger sister, 37, who I have always been attracted to and whom I have jerked off thinking about on hundreds of occasions.
Her sister came to visit us and I knew I had to get hold of her dirty panties to play with. I came home from work and they were out shopping, so I went to the guest room and found two fragrant, dirty pairs of bikini panties. I went to the bathroom and put one pair over my face with the dirty crotch on my nose and mouth. I wrapped the other pair around my eight-inch cock, which was rock hard.
I was shaking, as I could smell her hot cunt and ass. In three jerks I shot cum all over myself. Afterwards, I quickly cleaned up and went back to her room to put the panties back. I then turned on the TV, but within two minutes I was hard again, thinking about her hot smelly panties. I couldn't stand it, so I ran back to her room and did it all again. I came so hard the second time.
I remember well how hot they were and often jerk off thinking about my sweet sister-in-law's hot, smelly, slutty panties.