Is it normal that i f*cked my gf's mother

yesterday i came home late around 2 in the morning ,too drunk , my girlfriend had had visited her uncle for the past two days, so normaly when am drunk i sing songs ,so her mom quicly opened the door for me cause i lost my keys, she realised that iwas too drunk and she took me to my room ,then she undressed me softly ,i acted like am i think its my gf ,then she put me to bed iwas totaly naked ,she closed the door and went to her room ,so i felt asleep suddenly i felt warm on my dick,i opened one eye i realised its her sucking this dick, she sucked me until i came , so she let me come inside her mouth at that moment she's holding my dick ,am still acting like am in my deep sleep ,suddenly she went out and come back she masterbated me until my dick get erection again , she took off her clothes ,at that moment am still acting the same like am not feeling anything, then she took it and put it inside her vijayjay i felt her warmness like i can open my eyes she fucked me until i came inside her ,then she quickly wipe my dick with her towel and went out.so even today i never asked her or talk about ,even my girl she doesn't know what was happening ,and her mom too act like i know nothing ,my girlfriend mom's pussy is so sweet like nothing on earth . Was this normal