Similar answer to a few others posted above. The hottest thing i have ever heard is my buddy and his wife fucking for hours when I stayed over at their place

Hottest thing was when I was giving a guy head and he called me a cocksucking faggot. I don't know why, but it drove me insane and I came on the spot. I've heard it a bunch of times since then and it still makes me weak in the knees.

A weekend away with a fuck buddy, we were in a bar late afternoon and she leaned over and whispered in my ear I want you in all my holes

Hottest comment:

During a MFMF session, just as the other guy and I plopped our cocks out while the ladies were on their knees,
he leans over and whispers to me,

"My wife is a real pig for the prick."

He was right.

She loved having two stiff meatpoles in her mouth at once.

Phoned the wife up when she was away at a conference and heard in the background a male voice saying quietly hurry up Kate im so fucking hard for you

My wife saying "I want you to fuck me and cum in my ass!"

Uni room mate fucking his gf "quietly" thinking I was asleep. Heard her whispering to him "i'm gagging for serious arse-fucking!"

Listening to my milf neighbor getting ducked through the wall

I was sucking a guy off and he said " Fucking hell, you suck me better than any woman has"..... im proud of that

I was shopping at the store and heard two hot late teen store associates talking behind a clothes rack saying, Yeah so he started fucking me in my ass and it hurt so bad.

She had to be 19 at the latest. Very petite latina with nice sized tits and cute but not big ass.