My mums twisted side

My mum (48) gets sexual when she gets drunk. She likes to brag how she's got nice tits to me when she's been drinking. We would cuddle and I (22) would finger her and play with her tits and she would moan but it never went much further . It all stopped 4 years ago after I moved out over a fight . We have a friendly relationship now but live separately . She has recently been insisting on us doing something and casually saying "we can just stay here or there" I miss playing with her tits but not sure how she feels .