Darker Fantasy (Its Only A Fantasy!)

So I have a fantasy that i would never act on. BUT that doesn't mean I don't like thinking about it.

I want to watch my wife fuck a young high school guy. I want to watch her devoure him. Watch while she holds him and kisses him, and acts very motherly a sweet to him. I want to see him suckle on her tits and put his hands all over her bbw body, and her take his cock into her mouth. Watch them as he mounts and puts his young cock into her deep, experienced pussy. To hear her moans as he pumps her and fills up her pussy, and cums deeply inside her.

Then my fantasy splits. As he collapse on top of my wife, I would lube up my cock and I would slide it in his tight smooth little asshole, while my wife holds him and kisses his face, and tells him what a good boy he is, as I fill his tight little butt with my cock. I wouldn't roughly fuck him. I'd be gental and loving. I want to hear his soft little moans, while I fuck him. My wife kissing him and watching me. I'd cum inside him, then we'd cover him in kisses.

Other scenario would be sliding my cock into my wife's creamy cum filled pussy, and reclaim her pussy for myself, I'd make her cum all over again. Then I would cum inside her, filling her beautiful, insatiable, hungry pussy.

I know it's immoral. But it's only a fantasy, and nothing we would ever do. But I do get off on the idea of my wife being pleased by such a young lover. Maybe its because I've gotten older. When we met I was 17 and she was 26, and I always got off on being her young stud. But if I'm being honest stories about young guys being taken advantage of by older women always excited me.