Should I Tell Him Everything

A few weeks ago I caught my husband having sex with an older man.
They were in our kitchen and the older man was fucking my husband from behind.
It was clear this wasn't their first sexual encounter from the things they were saying to each other, as I looked on from the doorway.
I'd come back home at lunch time because I'd forgotten my works lap top charger and needed it.
The thing is, as I watched my husband receiving the older man's cock and heard him saying things like "Yeh, fuck me harder". I became utterly turned on. So much so I found myself reaching under my skirt and playing with my pussy through my knickers.
When they moved, I quickly moved back, went into the lounge to get my charger and could hear them fucking loudly again.
I used their grunts, moans and sexual comment's to slip back out and go back to work.
All the way back to work I kept on thinking about what I'd just witnessed and drove myself to point of sexual distraction.
I have an older boss at work who'd been flirting with me for a few months. That afternoon I let him fuck me twice. Once in his office and again in his car before getting in my car to drive home.
My husband was working at his computer when I got in, but I was still so horny I made him tongue my pussy on our sofa.
I didn't tell him I'd watched him being fucked, nor did I let him know he'd just licked out my pussy with my bosses cum all over it.
I've still not told my husband what I saw, probably became my boss has been fucking me most weekdays.
I can't have kids, so I always let my boss cum in me, which invariably means when I get home my husband has the treat of tonguing out my bosses sperm.
I'm now contemplating wether I should tell my husband what I witnessed him doing, and confess to him my fifty one year old boss has been fucking me. And that he's been eating out my pussy with my bosses cum all over it.
I know for sure my husband is still being fucked by the older man ( I think he lives nearby) so I don't have any regrets to having sex with my boss. But I'm not sure if my husband would necessarily agree.