I have a better suggestion that will be better and more rewarding than kicking his ass but your wife would need to play along. Get a friend of your wife's to hide in your bedroom closet with a camera. Then invite this guy over and get him drinking a little get him a little buzzed. Then have your wife say that she us very very horny and she just has to get naked. Have her strip but ass naked and say oh I'm just so horny I've got to have some cock. No I'm so horny I need two cocks but I want both of you to get naked right now right here. Once all three of you are naked have her say wait lets have a couple of shots. Have her pour the shots but tell him to wait until we go to the bedroom before you touch me. Get him pretty drunk and charged up. Then have her go in the bedroom an get on the bed spread eagle and play with herself. Then have her call you both into the bedroom. Then have her say ok now both of you are my bitch and have to do what I say. Have her play with herself as she says it and have her frien record this. Then have her ask him well are you going to get hard for me come on play with that little dick and get I hard for me I hate being teased. Then have her say look see my hubbys cock is nice and hard and it can please me. Get yours as big as you can. Have her keep it up until she makes him blow a load jacking off trying to get his cock big enough for her. Once he blows his load have her gf come out the closet and both start teasing him
at that tiny dick,its so little he can't even get it hard enough to get it in. Then have her say oh well I guess I'm going to have to settle for one cock because his isn't big enough to even feel. He will be so embarrassed with two women laughing at how little his dick is and that he had to just jack off and was seen by another woman that he will leave so embarrassed he wont ever come back. Like I said it will take your wife's cooperation and her gf will have to see you both naked and probably see you hard and excited but it will be so worth it to have a video of him jacking off his tiny dick trying to get it hard enough for your wife and then to see another woman come out and laugh at him. Or you could get your wife to just have like four or five girls hide in the closet and come out and make fun of his tiny dick instead of filming it. Either way if you expose to women he has a small one and they openly laugh at him about it he will be so embarrassed he won't dare show his face again around you and plenty of other women will know just exactly how tiny his cock is.