My friends mom flashed me

I was at my friends house a couple years back I don’t remember much of that day but I do remember that we where sat in his living room with his mom just talking and messing around. At one point he left the room to go to the bathroom and I was talking to his mom. The conversation was already about girls and who we had crushes on in our class so we carried on that conversation. I think I said something along the line of “I’m not gonna go through all that just to see some boobs” and she said “boobs are just boobs they are nothing that impressive” I chuckled and then she said “here consider this an early birthday present from me” she then lifted up her shirt and flashed me for like 10 seconds. I think I said “woah” and she laughed and said “just don’t tell (my friend) about that ok hon”. after a while he came back into the room and we pretended like nothing happened. 10/10 experience.