Just reread this...okay he will be fine. But I don't know how to tell if a girl dog is in heat... She will be under a year when it happens the first time. This girl dog is my best friends dog and our dogs have always played together - they are like best buds too. I really really don't want an "oops" with her being so young that couldn't be a good thing.Rookie was neutered at 19 months and he always played beautifully with females. We only encountered one bitch in heat during that time. Some idiot brought her to the dog park. I clipped the leash on immediately and left. I would say as long as Max is not around a dog in heat, he should be fine.
Before he was neutered, Rookie actually had more problems with other male dogs than he did females. Some males, especially intact ones, just didn't like him. He's a total pushover, so it never turned into a big deal because he wasn't the type of dog to react aggressively. But I did keep a careful eye out on his interactions with other intact males. I think it depends a bit on your dog's personality as well.
I agree with this entire post. Please be very careful with those 2 unaltered dogs!!!I don't have a female, so other than the spotting, I don't really know what to look for. But if your friend has decided not to spay her dog, she must have done some research. I'm sure your friend is planning to isolate her dog when she is in heat. Have you talked to her about it? She should be able to answer your questions... and if she can't... she probably needs to get informed. It's a pretty big responsibility to own a female that is not going to be spayed.