I think it finally happened?

For years I have asked my wife to pretend to be with another man while we make love. One out of three times, she will play along. Once I cum, the thrill usually fades but later I begin to think about it again.

For the past two days, one of my best friends in for a visit. Very good-looking guy and still single at 38. Quite the womanizer and he also have a big dick (I know cause we played sports together in high school). We had alot of takes last night and my wife was rather flirtatious with my buddy.

So I wake up this morning early and turn over to see my wife was not beside me. She usually wakes up earlier to get our kids ready for school. But this was definately earlier than usual. I layed in bed for about 10 minutes and then got up to go downstairs. My buddy was already up and fully dressed. We went through the morning as usual.

So I take him to the airport (literally 20 minutes ago). On the way home, I got a strange feeling something happened. Went I got home, the first thing I did was check the launder basket to find my wife panties. Find them and low and behold a large crusty stain in the crotch of her dark blue panties. I know women discharge but this seems rather large and looked like dried cum.

What do you think?