I think a lot of people underestimate what being lonely and feeling undesirable can be like, add in some wine or other spirits to loosen up morals plus a horny teen guy and you have an ending where his mother was very willing to play around.
I grew up in a totally normal household, lived in a subdivision, my parents both worked and my sister is five years older than me so was off to college and life while I was still in my teens. My dad left, just up and moved to another state divorcing my mom and really both of us, she took it hard and so did I but was not in the frame of mind to really grasp it. She started drinking after work just about everyday and was also seeing a therapist for a while.
We would have movie nights renting one and one evening she came out wearing just a t-shirt and underwear after telling me she was going to get out of her work clothes. She sat on the other end of the couch from me, also not normal, constantly had one leg up and her crotch easily seen, nipples would jiggle as she walked getting snacks, refilling her drink and using the bathroom. She told me after the movie was over her back hurt and would I rub it, got some lotion and laid right down on the living room floor with a pillow under her stomach saying it helped.
Once she was down there she said Oh, hang on a second, lifted her shirt right off over her head and I stared at her boobs pressed into the carpet. I started rubbing her back and listened to her telling me what to do and had tingles run thru me when she said Oh just pull the back of my underwear down to get my lower area there, don’t want lotion getting all over them. I pulled them down and over her ass cheeks and she did not even say a word, even lifted her hips some while I was doing it.
I got hard of course because this was all extremely exciting for me and part of me thought this seemed strange and should not be doing it but the other ninety nine percent of me was thrilled beyond measure staring at her butt crack and anus when I rubbed her cheeks apart. I had slid over her side boob several times, no comments about watching myself there, all I heard were sounds of relaxation what a great job I was doing making her back feel better.
She propped herself up at one point, asked if I could grab her drink so she could have some and she downed like half of it, she was handing it back to me and one of her boobs was off the carpet exposed completely. She pointed over her shoulder saying more rubbing please masseuse, legs too if you want. Her underwear had worked its way down further, I was looking right between her thighs at her pussy and while rubbing her legs I leaned way down with my face inches from her and inhaled her scent, when I finished her legs she started turning over and I sat there wide eyed as she put her arms out over her head and said Okay, Front side now! with her bush and breasts fully exposed.
Loneliness, Alcohol, and Horny teen guy all led to hours of pleasure for her and learning for me.