Horny mother dilemma
My dad was diagnosed with prostate cancer 2 years ago when he was 46. I was 22 back then. From what I understand my mom hasn't had sex since. My dad recently got a job three hours away and I'm still living with my mom. One day when her and I were driving back home from school she shared some intimate things with me. How she was struggling for sexual desires and satisfaction that ever since my dads desease it never felt right. I guess my dAd arranged for her to get fucked on several occasions but it never felt right and she only did it to make him happy. We kept having these convos here and there. One day my sister was out of town so was my dad my mom and I split 2 bottles of wine I was drunk. We started watching true blood and after a few sex scenes my moms left hand was between the opening in my boxers. I wAs kinda like WTF at first but hard never the less. As soon as I got hard my mom pulled my dick out and started stroking me. That's when I finally said something. I asked her what the hell was going on she told me to just not say a word...in the next twenty min I filled my moms mouth with my cum. She didn't say a word got up and left. Next day she acted like never happened.
So I don't know what to do? I know my mom is suffering, but should I tell my dad? I wAnna talk to her about it but don't know how to approach. The fucked up part is that I enjoyed my moms blowjob no matter how disgusting I thought it was. And what's gonna happen next?