School reunion. My wife had gone in a school uniform and looked a complete tart and she knew it. "you do know that ex of mine will be there tonight?" she said. "the one who said he was going to fuck you?" I asked. "Yes thats him!" she said. Well into the evening I clocked him talking to my wife, typical clever bastard, knew women fancied him, and by all accounts had a really big cock. An hour or so later I watched them disappear outside into the carpark, the bloke knew she was with me, he didnt care or know who i was. I began to realise he intended to carry out his threat. I sent her a text where are you? She replied a few minutes later. Please dont be mad cant help myself tim has me outside he says he going to fuck me rotten. I know this is wrong but i cant say no to him. I replied, Does he know im here? Yes she said, but he doesnt care so sorry babe. When I found them he was up against a wall with my wife slowly sucking him, he was fucking huge! I managed to get within 10 feet where i could hear him encouraging her he was asking her if she missed his cock and she said she thought about it every day and now she needed it inside her. She gazed up at him with her lips gliding along his huge cock, her saliva rolling down onto his balls in waves. He pulled her up and kissed her whilst she continued to wank him slowly. Before I knew it her shirt and bra were off leaving her in her skirt and heels. He was on her tits in a flash and her back arched and she groaned deeply as he gave them all his attention with his tongue and mouth. I knew now why she couldnt refuse him as her face was a picture, her eyes closed and biting her bottom lip as he started to work on her clit with his fingers. She backed upto a low wall and perched on it wanking herself as his oversized cock slowly disappeared into her body. She was gritting her teeth as he used all his cock to impale her as he held her by the waist. She then relaxed and what followed was the most erotic thing I had ever seen. Within minutes his steady pumping had her holding on to him for dear life and screaming, pleading for him not to stop. His technique was very controlled and steady and sent her over the edge time and time again until I thought she might actually be in pain as she was sobbing uncontrollably. This was the fuck of her life and she knew it. This continued for 15 or so minutes until he suddenly sped up and then pulled his angry cock out of her and ejaculated in thick, heavy strings of cum all over her tits... Her toned body trembled as he sorted himslef out, kissed her and walked back inside round the front of the venue. At this point i revealed myself to my cum drenched wife who looked over at me and smiled. "Not even my vibrator and your cock together would even come close to what he just did to me". I went home alone that night. She came back the day after when she described how he had fucked her through the night in the nearby hotel. Only the sex was even better having a room to go wild in. We often recall this night when we fuck I get her to tell me more each time. I'd love my wife to be a slut like this.