My wife Nina has a very unusual party trick. She can blast a ping pong ball out of her pussy up to twenty feet away, by pure muscle control. The first time I saw it was at uni. We were in the bar that was used almost exclusively by students. I had spotted her with a big crowd of lads and girls. One seemed to be giving just anyone a blow job. Then Nina suddenly lifted her skirt and removed her panties and sat on the pool table. She stuffed the ping pong ball firmly into her pussy then she laid almost flat and the lads counted down from ten and on zero. On zero she blasted it probably just over twenty feet. I fancied some of that pussy wrapped around my cock. Later as others were doing daft and even dangerous things I sidled up to Nina and asked her out. She looked straight at me and said, "You asking me or my pussy out." I told her both if they were prepared to come out with me. That was it, we were soon an item. During the rest of uni I only saw her perform her trick twice more in public. Soon we were married with two kids to go with the house and dog. Now in the back end of out thirties we were invited to a party. Having dropped the kids off at their Nan's we went to the party. It was hosted by one of Nina's friends that she would talk to at the school gates. I wasn't fussed in going as I thought I wouldn't know anyone. I was surprised when I found two of the guys I used to see at uni. I saw one of them hitting on Nina and thought it funny that he would hit on a married woman with kids. I found myself talking to several people and one was telling me that for just over trade price he could do me a conservatory. As I had been thinking about one I spent some time haggling with him. Later having got his card I went to look for Nina. At first I couldn't see her and then I heard one of the men talking about Nina's party trick. I looked at him and as he didn't know she was my wife her said, "Look mate you need to get up there quick while she is still doing it. I was up the stairs in seconds. I was shocked at what I saw. There was six or seven men crammed in a bedroom and Nina was on the bed with her skirt up around her waist, and a man I had never seen before, was inserting the ping pong ball from his mouth into Nina's pussy. Nina groaned as he poked it in with his tongue and then licked her pussy and clit before moving away. The man counted down from ten and as I had seen before Nina blasted the ball out and across the room. Two men fought to get to the ball first. The winner put the ball in his mouth and then he was between Nina's legs. As she was readied to perform her trick again the one lad from uni said, "Your missus is still a good sport and that pussy of hers hasn't lost any control." Then as the ball shot across the room again two different men struggled for the ball. Like before it went in the winners mouth and he was between Nina's legs. The next man who caught the ball didn't pop it in his mouth, instead he said, "Lets see just how good her pussy is. He was between Nina's legs and I couldn't see what he was doing for a moment. Then I heard Nina gasp and it was followed by an even louder groan. Then I could see her again and his bare arse bouncing up and down. "Fuck me that's one tight fanny," he declared as he pounded into my wife. "You've got to try this," he said turning to one of the other men. Then he was groaning and I guessed that he had just dumped his load into Nina's pussy. Then as he withdrew his cock he stuffed the ping pong ball really deep in Nina's pussy. "Now spit it out you filthy bitch," he growled at her. The ball went flying. The man who retrieved it popped it in his mouth and like the previous man took his cock out and slammed straight into Nina's pussy. He lasted a little longer than the last man before coming in Nina's pussy. Then he stuffed the ball deep inside Nina. She again blasted it across the room. The next man to retrieve it had other ideas and stuffed the ball into Nina's pussy and then stuffed his cock into her pussy, pushing the ball deeper. Nina groaned at something being that deep. He didn't last long at all. This time cum flung everywhere as the ball blasted out. The next man wasn't interested in the ball and just climbed on and pumped away. It was now that Nina saw me watching and I could see fear in her eyes as the man pleasured himself with my wife's pussy. As he came Nina pushed him off and climbed off the bed leaving five or six more men complaining that they didn't get a go. Nina ran down the stairs and out the front door. A few minutes later I found her at home in tears. She was upset that she had betrayed me and that she had gotten drunk and allowed herself to be used in that way. The man from uni had plied her with loads of drink and then bet her that she couldn't still do her trick. Nina always like a challenge and in her drunken state accepted the challenge, but what she hadn't expected was that lots of other men would come to watch or that things would go further and get out of hand or that she would get fucked. After I assured her I wasn't about to divorce her or beat her or shout at her, I told her I had actually enjoyed the show and would have liked a go. We ended up on our bed and as we didn't have the ball I just fucked her and she had to try to push my cock out with her pussy muscles. It wasn't my first time felling her doing that, but as before it had me coming very quickly. I wondered where the ball came from and Nina told me that the man that challenged her had asked out host if she had one and it was one of her kids balls. That was three years ago and Nina hasn't done anything like that since, but when the world gets back to normal there's always hope for a repeat.