Accidental sexting with my slightly older boss [MF] [Cheating] [Long]

I’ve always had this thing about my boss, Leah. She’s 38, about 5ft 5in. My co worker and I often have conversations about how smoking hot she is.

There’s a bit of background in the next paragraphs or so, if you want to skip to the sexy stuff look for the “———-“s

Over the past few months we’ve gotten quite close because she’s not much older than me and we click. even though we remain professional at work we still have a laugh when we’re in a boring meeting with the big wigs, she’ll whatsapp me about being bored or whatever and we’ll exchange a couple of memes/gifs to make the meeting go a bit quicker.

I’m 33 and live alone with my pug, Leah has been married about 3 years. Fridays are always our unofficial “early finish” day, Last Friday Leah was in a real bad mood, everyone in the office could see it and kinda stayed out of her way due to her fiery temper. We’ve all felt the wrath at some point including me. at lunch time she was sat alone in the break area. my co worker was off so I asked if i could join, to which she agreed.
“Whats up?” i asked
“Nothing really” she replied with a blunt tone.