Is my girlfriends mom flirting with me…………..

Last time I was at my girlfriends house we were sitting on the couch watching a Baseball game. Oliver started drinking a few beers and a few glasses of wine. So my girlfriend got up to pee. And her mom I think I was pretending to adjust her bra. When she pulled out one of her titties,Looked me in the eyes and pinched her nipple. Then licked it. Later when me and her daughter got up to go to bed. My girlfriend let the dogs out and walked outside with them. She walked out the door and her mom was against the counter looking at me again with her left hand in her pants. Then she walked up to me and rubbed two fingers that were wet and smell like pussy across my nose and Put them in my mouth. She’s never mentioned it. That was four months ago. Should I fucker