I still get very aroused recalling an old girlfriend who was very nice looking with 3 kids from her first marriage. She had recently ended her second marriage when we hooked up and her son was going through some emotional issues.
He was really attracted to his mom physically and used to claim that the house they moved into was haunted and get into bed with her in the middle of the night whenever I wasn't there. She fell for it until waking up one morning with his "huge package" rubbing on her bare leg and him touching her hard nipples through her pajama top. She swore she kicked him out and forbid him to do anything like that again but I have my doubts sometimes as our relationship went down hill from there.
She acted like it was no big deal when I told her some of the things he said to me like "You must be as big as I am by the way you make my mom moan at night." Another time he commented that it was a no brainer if his mom swallowed or not.
She ended up getting him some professional help and one night she came home with him from a joint therapy session with her underwear in her pocketbook. I still go crazy thinking about that one as she made up some weak excuse about why and that was pretty much the final straw for the both of us.
Now I realize I am no different then he was because even though she was his mother, I would have done her too if the chance came along as she was a freak in bed and loved sucking cock like no one I have ever been with to this day.
God knows I do miss her even with the obvious baggage she came with. No pun intended but for some reason the thought of that still turns me on.