What a cute pup!

Definately get him neutered! It will make both of you happier (even if it will lower a little self esteem at his lost manhood ) Its much more healthy and there won't be any accidents with the ladies

Sounds like the dogs are just playing to me! My dog and her boyfriend wrestle pretty rough too She squeals and yips alot (she does that with bigger dogs) and he constantly growls like he's fighting lol...but they love eachother