I'm a 63 year old bi male and in the past year or so I have been into sucking cock rather than just getting sucked as I have since I was a teenager.
I have met some guys on Squirt or Silverdaddies and we have met outdoors, at ABS backrooms and often at their home.
A couple of weeks back, I met a guy on line we set up a time, and I went to his place for some man to man. When I rang the bell he called for me to come in, the door was unlocked. We shook hands and He ushered me up to his bedroom we got our close off got on the bed and he began to
stroke my cock and tickle my balls soon he was sucking my thick hard dick and as we were in the 69 position I saw his cock was hard as well. Soon I was fucking his mouth and sucking his cock and massaging his balls. We were both going at it hot and heavy especially for the first time. Without warning we were startled by Oh my God John what are you doing? We separated and both put hands over our raging hardons, His Mom probably early 70's and quite overweight was aghast at seeing her son and a man close to her age sucking each others dicks middle of the day. John ordered her down stairs chastising her for not ringing the bell or calling before just coming up the stairs. Her defense was the door was open. Needless to say I was dressed and on my way out the door while they continued to argue.
I had an email waiting for me when I got home, with an apology and another invitation. John said his Mom has known for 30 years that he was bisexual even though his wife does not know, and she has walked in on him before. He invited me back the next day. With some trepidation I returned and we had a great time each blowing huge loads, this time with the door locked and a dead bolt secured. He said that she probably watched for a good while before calling out, and that once when he lived at home she hid in a closet and watched while he and his cousin sucked each other off.
Now I have had more than a few MMF encounters but with a guys mother? That would be too weird but I have to admit I did think about it.

Hot. Sounds like his Mom likes to watch her son sucking cock and getting sucked.
I'd start with letting her watch and see where it goes. Could be fun if she joined. If not being watched sucking cock is a major turn on.

Hot story!

i got caught by a few women i was dating at the time sucking a guy and being fucked by a guy...i was red faced but also had a rush at the same time....one stayed and watched and directed and got into having me service guys for her after that for a few months. it was awesome