dog penis twisted , see what will happen

Unbelievable, Crazy dog penis twisted but survived.
Two dogs fighting for sex for one female dog.
Penis stuck then separated.
It is possible for male dogs to injure their penis during mating, especially if the other dog is uncooperative or if the dogs are forcibly separated while they are tied. This can be a serious problem, especially if he develops swelling in this area because this can cause a urinary obstruction as well as pain and discomfort. I would recommend having him seen right away by an emergency vet if he seems painful or uncomfortable - he will probably need to be sedated to examine the area and find out what's wrong.