I had no idea she would do this

At a party at my boss's house my wife let her hair down with my coworkers

My wife grew up the daughter of a preacher. She won't say shit if her mouth was full of it. She only let me make love to her once we were engaged and the wedding plans were in place. Then it was with the lights turned off and only half undressed.
Fast forward 8 years and we have finally ready to have children. I'm 29 she's 27 and still I have only seen her fully naked a hand full of times. She is a little more comfortable with having sex and really enjoys me going down on her even thou it's one way only. She kissed my cock once and never again. She enjoys sex but has only orgasmed from me having oral sex with her. That's why I'm so shocked with what happened.
My boss is a great guy and I can't remember anyone saying anything bad about him. He lives in a beach house by the ocean and there's little little mountains on each side so it's very private. He told everyone to bring their swim suits with them to the party which started at 3 in the afternoon. My wife took her one piece she always wears and even if it doesn't show anything you can still see she's slim with nice size tits for her build with a great ass.
A bunch of the other men were eyeing her up on the beach which made me proud that she's mine. The body put on a full spread with even a pig in the ground. I seen other men talking from time to time with my wife and I even seen her smile at one guy. That shocked me cause she doesn't smile a lot. Plus she was drinking more than normal which is a glass of wine with Sunday dinner. Then a real shocker she was dancing with one of the older men that was there.
At our wedding she danced with her dad, her brother and my dad as well as me and that was it even thou she was asked many times. And now she's dancing with my boss on a slow number and her smile is from ear to ear as he talked to her. If she wasn't dancing she was drinking.
It was warm out and she went outside with a guy I had only seen a couple times at work. As they stood side by side talking with his hand just above her ass he turned her and kissed her on the lips. She pulled back and I thought she was going to slap him but when he tried again she kissed him back. I felt like someone had kicked me in my balls and as I went to walk outside my boss cornered me saying we needed to talk about something important. He grabbed my elbow and walked me to his study.
He went on for a good 20 minutes on how much he loves my work and how he had plans for me and a bunch of crap he could've said at work. As we walked out one of my female workers asked me to dance and my boss said I should relax and enjoy myself. Well 1 dance become a half dozen with different women including my bosses wife. All the time I was checking out the room not seeing my wife anywhere.
Maybe 20 minutes later I seen her homing down from upstairs with her hair messed up and looking flushed. She was all the way across the room and when I got there she was gone again. The last time I was next to my wife was just after we ate dinner and that was 5 hours ago. I finally found her on a couch looking very drunk. I said that we better head home so she could sleep it off and she agreed.
I helped her into the car and she didn't even care her dress had slid high up on her thigh. Driving home she was all but asleep and that's when I noticed that the pantyhose she had been wearing was missing and with her dress being that high up there was what looked to be a hickey on the inside of her thigh maybe 4 inches from her panties.
By the time we parked in the garage she was totally out of it so I slipped my hand between her thighs finding her panties to be soaked and not with what smelled like pee. I carried her to the bedroom and undressed her with the lights on. I found a hickey on her left breast and one more just above her public hair. Her pussy was matted and leaking a fuild which I knew had to be cum. I knew for sure that she had to been fucked bareback at that party. I cleaned her up and never said anything to her.
Monday morning as I was about to walk past the boss's office the guy I had seen kissing my wife was just leaving. He took one look at me and took off the other way. So I popped my head in my boss's office asking him who that was just leaving his office. He smiled and said " Ho that's my son from my first marriage. You have to watch for that one he has a way with the ladies that one." I haven't had sex with my wife in 2 weeks but she's not on birth control and if she turns up pregnant it's going to be my boss's son who by the way is black just like my boss.