My first affair

I’m a 24 yr old successful female engineer with a Master’s in mechanical engineering MSME & PE. Two years ago, I was recruited by a company in NC that paid for my relocation.
I’m also a health nut, vegan, yoga & marathon runner.
My husband only has a BA in English! Neither of us want kids and we were living together but when I got the job offer, we decided to get married. I apologize for venting but since the move, he’s gained 30 pounds, drinks lots of beer, games all the time and STILL UNEMPLOYED! Plus! the last time we had sex was 6 months ago! I’ve made attempts but he’s so drunk, he can’t get hard.
So, I’m confessing my first affair.
While working on my PE, I spent a week in Florida at a training seminar. I also met John, he’s a structural engineer and for a 53 year old man, he is in great shape! BTW: My dad’s 51. Crazy isn’t it??? Oh yeah, he’s also married.
During break, John and I started chatting. We found out we were staying at the same hotel so I agreed to meet for dinner at the hotel restaurant.
I can’t explain it but I agreed to go to his room for sex.
He got on his knees and slowly pulled my panties off, removed my wedge heels and started with kissing my toes! A first for me!
He kissed the inside of my legs until he made it to my V-jay! His warm tongue felt amazing. OMG! He was down there for a long time. His tongue skills matched a former girlfriend.
Sorry, I hate to toss shade at my past boyfriends & hubby but neither spent that long down here.
His warm tongue rimmed me then tongue f**ked my butt! I was on the edge of climax!
He removed his pants and he was already hard. I’ve only been with 6 guys and I can say with confidence, he’s well endowed. He’s HUGE & THICK with a large mushroom head. Definitely the largest I’ve ever seen.
I had to give oral.
I wanted to suck longer but we both agreed it was time to have sex.
I laid on the bed and watched him go inside! His hard muscular body felt so good on top of me! We took turns till we were both satisfied.
He’s like a freaking pounding machine! During climax, he grabbed my butt and went faster and harder! OMG! Best feeling ever! He came inside me and it was a lot!
I looked at the clock and we had sex for an hour. I’ve never had sex with a guy that long!
I was spent! We kissed for a few. WHEW! That was intense! I got dressed and left.
My original intentions was ‘one night stand’ but I ended up staying in his room for the rest of the week!
Ok! I didn’t have that much sex on my honeymoon!
When I left on Friday, my butt and insides were sore! lol Yes, he wanted anal a few times.
We message on snap and he’s planning to tell his wife he’s going to Charlotte once a month to play ‘golf’.
Since I’m not getting sex at home. John’s agreed to be my ‘fix’ and I’ll be his ‘mistress’.
Isn’t it crazy I’m having wild marathon sex with a guy older than my dad. lol
The strange part is, I don’t feel guilty. Should I? I don’t want a divorce. I’m too young for that.
Thankfully, this is anonymous. I know I’m opening myself up for harsh comments but I’m curious if anyone has experienced something similar?