Helen's Big Black Cock

Helen is in her fifties, petite, slim, and a redhead, with nice boobs and superb rounded bum. She and I met around 4 years via an internet site for swingers - we live 30 miles apart and I meet her only once every couple of months when we both feel the urge and can get away (we are both married but not to each other). Sex with Helen is urgent, she demands cum almost as soon as she has cock inside her. Helen admits to loving cock, and has had numerous lovers over the years. Since we met, I have introduced her to a couple of my friends with whom I occasionally meet up for a threesome. One of these friends - Don - is black and has a nice larger than average cock (he is a big guy), but not huge or long. Don was Helen's first black cock, and I had arranged it as a special treat for Helen. He had her in the back of my car in a nearby forest glade, Don was vigorously plunging his black weapon into Helen's pussy and she was moaning loudly. It was a bit cramped in the rear seat so, after some minutes, they both got out of my car and fucked on the grass - even though it was raining!! Helen has become more horny more often in recent months, and just last month I organised for another friend - Simon - to meet us here for a threesome. Simon has a thick eight and a half inch cock (I am only average, but my ladies seem to like it anyway) and we gave Helen a hard spit roasting - her first - and came inside her and over her, she loved it. She told me the following week when we chatted on the phone that she couldn't stop thinking about it for three or four days! Then last friday my phone beeped with a text message - it was from Helen and read as follows:- I HAD A BIG BLACK COCK LAST NIGHT MMMMMM. I phoned her as soon as I could, I was intrigued, and turned by this text. She answered immediately, and I demanded she tell me at once all about it. She had come across this guy via the swinging website we both use, and he had given her his phone number some months ago. Well, last night Helen's husband was away on business, and she got really horny, so she phoned him, and later that evening he visited Helen at her home. She said he was huge, both long and thick, and she was frightened and intimidated by the sheer size of this cock. But, she was also extremely horny, and was determined to have this thing inside her and to feel him fill her up. T demanded she tell me every detail. She got him to lie on her bed, and mounted him from above, slowly introducing his cock into her pussy. She said it took some minutes before he was fully inside her, but she managed to take it all in. He fucked her in this position for some time and Helen was in heaven. Then, with her pussy now able to take him, he took control and fucked her from behind, really pushing his meat all the way in. Eventually he came over her tits, and left her ragged but happy. Helen told me that - suprisingly - she wasn't sore. Listening to her tell me of her exploits only a few hours ago, I was rampant, and told her I would drive over straight away, and to meet me at the front door naked. She agreed, and opened her door wearing only high heels and jewellry. Within seconds my cock was buried where that big black monster had been, and I gushed my load to add to his.