Caught Spouse Letting Neighbor Enjoy Seeing And Cumming On Her Breasts

My neighbor is a friendly and helpful guy a bit older than my spouse and I. I help him whenever I can. We drink beers and chat with one another at times. My spouse would serve us the beers that she buys for me. He can't help himself from staring at my spouse. She has oversize breasts with thick legs that stands out when wearing shorts. I jokingly told my spouse that the neighbor has the hots for her. I guess I shouldn't have because one hot day my spouse went bra less exposing the shape of her hangers under her top.
What I didn't know and later found out later that my spouse shared her tits to our neighbor and enjoyed having him play and cum on them. She wanted to tell me what she was doing but she was afraid I would leave her so she kept it a secret. I wasn't home because I had to take of things that needed attention. When I got back I caught her siting on the couch topless holding her jugs up while the neighbor was rubbing the nipples with his thick dick. My spouse said, " I guess this ends our relationship Dave ! " Then she told me she wanted to tell me about the obsession she has with our neighbor but was afraid to tell me. What I saw kind of turned me on.
I pulled out my dick and told my spouse to jerk it while I masturbated my neighbor. " Cum on my breasts boys, please ! I'm proud of my tits! " We covered them with our cum and she rubbed and sucked her hangers asking us if we enjoyed the moment.
We invite our neighbor over now and then and I watch him get off on my spouse's saddle bags while jerking my dick.