I get in the shower with my son and I ask him for sex

One day, I come home to take a shower after work and find that my son is taking a shower. But, he leaves the door open and I see how he bathes. In doing so, I see his huge cock and I am totally excited. At that moment, I start masturbating at the bathroom door and end up taking off my clothes. Then I enter the bathroom with the excuse of bathing next to him and after a few minutes, we have mutual oral sex and then an intense and unrepeatable penetration.