I'm only in this marriage because of you, my...

I don't feel horny for my husband anymore, but with my stepson, I lose my way. His cock makes me salivate with desire and that's why I drool all over it when I go to fall in my mouth. My pussy throbs with horniness just thinking about his cock penetrating me completely and I always instigate him to eat me hard, until he smears my ass all over with his milk...