My friends mom has a crush on me?

She is not married and everytiime im over at his house i get weird vibes from her and she is really seductive towards me....She is an attractive mom but thats weird because its my friends mom what do i do? Note* when my friend went to do his paper route.....i wanted to go with but she is like no aaron stay here and michael (my friend) was like yeah stay here..and she was like can you help me with this and bent over all over me and layed across my body to get something of the shelf .......im so confused i dont want to tell my parents cause they will flip