For 6 years now my friend (he is 46) and I have been going to the cruising areas in local parks - we first met in a park toilet. I get naked in a secluded area and get on all fours and when he sees a few men cruising nearby, he unclips the leash on his Great Dane. The dog knows how to use me and in just a few minutes, he is on top of me fucking my arse. Usually it happens that men stop to watch and they enjoy it and some will fuck me after the dog finishes or have me suck their cocks during the dog fucking. On the odd occasion, men are out walking with their dogs while cruising and will ask my friend if their dog can fuck me too. I like sex in public, especially when it involves a dog and men watching me.