My nephew, Marty, has come to visit me. It's the first time I've seen him in a while, and I can't help but notice his unusually large crotch bulge. I confront him about it in a no-nonsense way, asking if he has stuffed something down his pants to look bigger. He claims that it is actually his penis, which I find impossible to believe. He insists on taking it out to show me, but even then I can't believe what I'm seeing until I get up close and touch it for myself. Once I realize that he was telling the truth about his 14 inch penis, I become fascinated by it - touching, sniffing, and putting it next to my head to show the enormous size. I unbutton my top to show how his gigantic cock makes even my DDD breasts look small. I struggle against my urges as I become aroused by my nephew's huge cock, but eventually I can't help but lick and suck it. I get so horny that I have to lift up my skirt and mount his giant cock (simulated insertion). I ride his cock - or at least the tip - my face reflecting the pain and exertion of being stretched by his massive member. When he cums, the impact is so strong that it almost blows me off his dick! (This was a custom request and I use the name Marty throughout.)