I made a web search a day or two ago for "panties+semen" or "panty liner+semen" and one of the hits led me to a site that was some sort of marriage advice forum. This male individual had written that he has an obsession with cunnilingus (me, too) and that he prides himself on looking after his wife's "needs" in that area. Continuing, she goes out with the girls one night and comes home exceptionally late. He said she was "adamant" that he give her oral. He stated that she had a "tangy" flavor and he was asking had she been cheating.
The replies were all about sympathy and how to get a kit to check her knickers, and so on and so on. There was a lot of discussion about how long semen stays in the vagina, leaks out, etc. The consensus was to "open communications" and try to find out if she were unhappy, etc. Touchy, feely stuff.
This would be part of strategic plan to eventually see if I could talk them into letting me watch....
Yes, I used to love to find panties in the laundry hamper and have a look and a sniff. One time I lived with my wife and we had two of her women friends that lived with us. I was in haven, because I would sneak a look at the laundry hamper to see if I could figure out who got 'em some.... It was not difficult and very erotic.
If I had any say I would later tell the sweet lady: Wow, darling, when I went down on you last night, your flavor was extraordinary. I don't what you and the girls were talking about or whatever, but, damn, your pussy was absolutely delicious. I can't wait for the next time you go out with the girls.