Fantasies

If a friend of mine wanted me to fuck her, I'd be so down. This is more about what I want to do, and how I imagine her body. I imagine that she has a tight, sweet pussy, along with an equally beautiful, pink asshole, both of which I fantasize about licking. I want to drink down her juices as she cums. Sometimes, I wish that I had a cartoonishly long tongue, which I would use to taste her sweet, juicy asshole while she rides my dick. I imagine her screaming in ecstasy as I give her such intense pleasure. Smelling her hair would also be an absolute delight as I am thrusting my dick inside her tight pussy and exploring her body. Then to finish things off I would cum inside her mouth, and she'd drink every drop, and then id kiss every inch of her, passionately.

there's so many hot older women at yoga that I'd like to do this to, but why are women prudes?

I am a married 65 year old straight male that has ninja gay fantasies that I really want to experience. 
 I gave a good friend that is 42. He is a big muscular man and a few times I have seen his dick while hunting at my ranch. He has a big one.  Even soft it is very long and thick and I have walked up on him while he was taking a piss and I know he sees me looking at it. 
 I have fantasies of me bent over naked with his cock update my ass fucking me and I let him cum in my ass. I think about sucking just big dick and jacking him off but mostly I want him to butt fuck me. 
 After over two years of thinking about having sex with him I couldn’t take it any longer so when he called me the other day to see if I wanted to go hunting I slowly began to explain to him what I had on my mind. 
 Of course he was shocked at first but the longer he listened and the more detailed I got I knew he would be open to giving it a try. Before we hung up we had talked and had a very open very detailed conversation where we both jacked off and we couldn’t wait for the weekend to come. 
 That was last weekend  and most of it was spent naked watching porn jacking off sucking cock and he butt fucked me a half a dozen times and the last two times I begged him to cum in my ass and it felt great. 
 We have plans to
Meet for a few beers this afternoon and go somewhere private because I told him I want him to fuck my ass again. He and I both got hard just thinking about it. His cock is very thick with a huge mushroom head that really opens me up going in and his thick  8” really feels good when he is up my ass balls deep. Last weekend he fucked me face down on the bed and his big nuts were pressed against mine when he came up my ass and it felt great. 
 We both want to film it this weekend and watch it together then destroy it. No one can find out about this but I told him some day I would like to experience a gang bang. Several hung men using my mouth and ass for hours I
Jacked him off telling him about that and he likes the idea says it would be pretty hot to watch a group of me fuck me.