[kriket_kash]

I have a 5 month old male who loves to mark my female. Everytime I take them outside, he raises his leg and there Kash goes..... Right on Kriket's backside???? I have never owned a male before and did not know if this was normal??? I have tried to take them outside one at a time, but as soon as he comes in he tries to go on her again! Any potty training tips for him? What advice does anyone have for me??? Thanks!!!