My wife and our nice gentle Lab have been having sex for about 2 years they adore each other and really enjoy it, initially we stretched my wife with large butt plugs and dildoes along with plenty of lube so she could comfortable accept him and take his knot it took about three months to have her ready for the initial mounting, in between times my wife would get nude and play with him so he would be randy and blow in her hand, when she was ready we showered dried each other off and she went to the lounge mat where I lubed both her and him then she lay with legs raised and I guided him in he humped her for quite some time and she had three nice orgasms then he knotted and gave her a large load I held him in her till he subsided and was ready to pull out it was very sexy, they used to only do it when I was there because one time he got excited and swung his leg over and they were stuck bum to bum I had to pour cold water over them so he could release however now they are very experienced and she can do it whenever they like just the two of them but I do like watching, my wifes young girlfriend came over and my wife put on a show for her she liked it so much she asked if she could have the dog do her so currently she is in training preparing what a lucky dog she is a real looker with a wounderfull body we both inspect her and see how large she is taking the toys and she is nearly there for her initial mounting I will attend in the same capacity as with my wife it will be just so great watching them, that dog is ever so lucky