Makes Me Cum So Hard

Been a ladies man all my life with only one m2m experience many years ago. The missus has cooled down with her changes and my willy isn't as proud as he once was but still craves some attention. It's average around six inches with a long foreskin and a very red sensitive head and big hairy low hangers. When she is in the mood she will cup my nuts and gently rub them and even lick them which makes me moan. Those ministrations get the intended rise out of me and her hairy red twat is in for a good pounding.
Sadly those times are all too rare and I'm having a clandestine wank more and more.
What I find is I'm imagining nasty domination scenarios and getting off really strong climaxes.
I am not at all interested in humiliation but can't help getting excited reading cuckold porn online. A story that always gets me off has the man tie up his wife with ropes ass up face down and gagging her with her panties. Then he must suck her bull hard whilst she watches and then gets her arse lubed and takes the stud's dick and helps him to forcibly take her arse hard and deep. The bull gets his nut in her bowels and is sucked clean then cucked hubby eats her arse out letting her dump that hot load in his mouth. I can't imagine that ever happening IRL but it does provide a good tossing off sometimes even in the gent's at my place of work.