Ignorance Is Bliss!

I’m 19 and very attractive. My love of older men allowed me to establish a relationship with a coworker, Stan, 66 years old. I wanted and did lose my virginity to Stan and with his vasectomy we’re worry free.
We do have our problems though. Stan gets upset because my sexual drive is much greater than his leaving me wanting.
I have met only one of his children, the youngest, Brad. He’s 32, and sustained a brain injury at 18 in a motor accident leaving him dependant on others. His brain injury has taken almost all of his physical & communicative abilities. He communicates with sounds for yes, no, pleasure and displeasure. His mental level equal to his biological age though, leaving him a prisoner in his own body. Brad stays at Stan’s 1 to 3 times a week, so I do see him often. Stan once asked me for my assistance in bathing his son. I didn’t wish to get my blouse wet, so I took it off and just wore my D cup bra. Brad immediately got an erection which upset Stan. Not a shit fit but perturbed, even more so when Brad, made audible sounds of joy. I thought, wow at least your son is experiencing joy! Later when Stan popped out to get a few things, I entered Brad’s room. “Hi Brad .. it’s me!” His face lit up. I positioned his bed to a more seated upright position. “Would you like to see me nude?”
He made loud audible noises of approval. So I did a strip tease until full naked. His pj covered penis was tenting. His member is substantially larger than his dad’s!
I was totally turned on, my pussy dripping with want. I pulled Brad’s bottoms down exposing his uncut cock, which I placed my hand around. With out a move on my part, he ejaculated all over my tits, hair, bedding and pj bottoms! Stan wasn’t to be long. With no time to properly wash everything, I took a wet cloth wiped everything clean and drying them with my hair dryer. A close call finishing just as Stan walked in. A week later, Stan asked me to stay with Brad while he grabbed a shift at work. I was overjoyed!
I was to have a whole 8 hours alone with Brad! I came prepared with condoms and ideas. As soon as Stan left, I entered Brad’s room, completely nude in high heels. His face beaming in surprise. I removed all of his clothing, his emaciated body nude with an ample erection.
I straddled myself over his body sitting on his stomach. Gently kissing his face, I could feel the shaft of his penis throbbing between my butt cheeks. I moved up and mushed my tits on his face. I licked and lightly bit Brad’s neck and nibbled on his ear. Suddenly I felt his hot cum shoot all over my back and butt. I couldn’t believe how much cum! Much more than Stan, an older man. I continued kissing his face and neck, but couldn’t ignore that his ejaculate was now running from my back, down the crack of my ass and all over my gapping pussy. I darted to the bathroom to wash up, I don’t want to get pregnant! I dried off and laid back on the bed with my head on his chest and my hand playing with his penis. His erection was back immediately. I continued lightly kissing down his chest moving down with my mouth getting closer to his pleasure centre. As I kissed around his dick and scrotum, it began the throbbing again. It was like playing with nitroglycerin. When his penis throbbed, I stopped. Kissing his scrotum, licking his dick, it throbs, I stop. Licking his taint, it throbs, I stop. Over and over again. After 15 minutes of this, I stretched my mouth around his thick manhood. I wasn’t able to deep throat him like I do with his father. It had to be twice the girth. Even still, all but 2 minutes of him partially in my mouth had him shooting his load down my throat, so much so I couldn’t swallow it all with some coming out my nose! Brad seemed exhausted. I laid between his legs, my head resting on his lower abdomen, me lightly licking his penis clean like an ice cream cone. I looked up at him, “Would you like to taste me?” He vocalized his delight. His bed now flat, I straddled over his face in a 69er. He was getting a great shot of my anus and clean shaved pussy, wet and ready. I gently rubbed my wetness all over his face. He loved it. His dick was hard but I wasn’t going to put anything but my c**t on it. If I have any chance of orgasming it would be riding his thick mast. His delight was something when I said, “I need you in me Brad!” I put a condom on his cock and sank his mass into my wanting vajayjay. His girth much more than what I was use to but after a few careful strokes, I was rocking his cock for over ten minutes, my clit grinding into his pelvic bone, pulsating, gripping his dick to my screaming orgasm. Like idiots, the both of us exhausted, we fell to sleep. It could have been a disaster. When we awoke, thankfully there were still several hours left before Stan’s return to clean up. Stan never the wiser. I still service Brad’s sexual needs and Stan’s with out Stan’s knowing. Ignorance is, truly bliss!