Me (F37) and my son (M19) decided we should try a marathon. We trained alot and even go to the gym together. Although i am well aware he is my son, i sometimes see how good his body look and can even see that he has a big dick as it prints on his short, but i shrug those thoughts off since i know it is wrong to think that way of my son.
Day has come when its our marathon day, my husband book us a hotel as the venue is quite far. My son was really happy as our room looks luxurious. After our run, of course we got sore. We decided we just stay on the hotel room instead of going to the pool. We decided we should celebrate and order alcoholic drinks. We got drunk, we talk about life and family and somehow, i got really really horny. My son talks about he broke up with his girlfriend since she is too petite and she wants them fit with big boobs and ass. I jokingly says “seems like you are describing me” we both laughs. He looked at me weird, like we both want to fuck each other but it is hindered by how wrong it is. I got drunk even more and i told him we should go to sleep, i kiss his cheeks saying goodnight but end up making out really hard. Our moan echoes the room while we kiss, my hands wander and ended in his pants and his dick is already hard and my theory is right, it is big and thick, i jerk it off like we are kissing. I did not say a word, i suck it immediately, and it is so big, my eyes teared up, but i continue to deepthroat him. While i stroke his dick while sucking it, my son is holding my hair, he is squeezing it and even gently slap my face. And I LOVED it. His cum is all over my face but his dick was still hard. I push him to bed and i rode him real good. His cum is still on my face while i am riding her cowgirl position. I bounce up and down real fast and hard, my boobs aggressive bounce and my son looks happy seeing it. Every time he moans i fuck even harder. We tried multiple positions that night and fell asleep covered cum and sweat