Step-siblings masturbate together and their stepmother discovers them, now what will happen?

I go into my stepson's room and see that he is with the other one because I don't hear any noise but I am curious to see that they are under their sheets so I take them off to see what they are doing surprise when I see that they are masturbating so I tell them that they should not do it in secret and I offer them to know what it is like to have real sex with someone with experience who knows how to please until the last moment.