I have been masterbating with my wifes panties ever since we have been together. I love the feel of her panties and knowing they were hers. However, it was always alone. I would often jack off at the computer and one day in a rush, I left a pair of panties on the chair. I am pretty sure she saw them later but she never said anything.
A few months later, we were getting ready to make love and she whips off her panties and begins to give me a hand job. It was her silkiest panties and it was great. Ever since, we enjoy a bit of foreplay which includes her panties.