He Jokes About Something That Immediately Got Planted In My Head.

My husband and i have been married for over 25 years now. We are 2 average people living a average life in a small rural community. We have never considered having kids together but we have raised my husband sister son 'Dirk' after both his parents died in a car accident.
My sex life with my husband is nothing spectacular. His manhood can stand for no more than 5 minutes or less and that is because he's diabetic which makes my sex life very frustrated to say the least. My husband is very much aware of how frustrated i can get whenever i'm not satisfied sexually. And even though there's nothing much he can do about it i'm still not expecting him to be joking around or teasing me .

Now his nephew Dirk is a strong 22yo buck who party's a lot. His life is all over the internet doing porn and all kinds of shit. His cock is like a sledge hammer that my husband make jokes about. His favorite line is; "maybe i have to borrow 'Dirk's' cock to please you then give it back.
Now the first time he mentioned that he laughed... I chuckled also but little he knew that a plan was planted in my head at that moment. My only trouble was how do i get 'Dirk' to help out his uncle?

Now let me add that 'Dirk' and i have had an estrange relationship. He was definitely not one of my favorite when i learned of his lifestyle . He has no respect for me nor my husband (his uncle). He also makes good money but he only spends it among his party friends and multiple whores.

Things have now changed with me and 'Dirk'. I started craving his cock and i wasted no time to lowered him to fuck me like one of his whore. He did not refuse when i literally through myself at him by entering the bathroom while he showers and from that day forward he have been fucking me good. My husband still jokes about borrowing 'Dirk's' cock but little he knew that 'Dirk' have been lending me his stiff cock whenever i'm thirsty.