I woke up one morning when my in-laws were visting and they and my wife were supposed to be out early. I went from
my bedroom to the bath to take a shower thinking I was slone ( having already stripped ). I walked through the door and bumped right into my mother in law naked bending down looking in her travel bag. She was about 48 at the time and still looked great ( 5'4" 120 ish maybe 36-24-34).
I backed up and apologized but she turned around showing me her breasts (which had the big pie-plate nipples I love)
and surprisingly no pubic hair. At this point I became erect and tried to hide it, and let the room. I went back to my bedroom but she followed me, telling me my father in law and wife had gone out shooping and not to be embarrassed by it. They are European and she asked me if she could she my penis again as it is circumcised and most
European guys I guess are not. I didn't think anything of it but she then placed her mouth around it and a minute later I was having sex with my wife's mother. We promised not to say anything about this but I am so worried about my wife finding out.