First time Fistfuck and doggy on hidden cam

My 37 yo gf wasn't fisted before. This is her first time on static hidden cam and she's got an overwhelming orgasm by fisting and a small one by clit teasing. You can hear the moaning. One finger in her ass makes her crazy. It is an amazing feeling when the pussy becomes closer and closer around my hand and her asshole pulsates on my finger. After this I can do with her what I want, so I fuck her doggy.