Wife Has Become Such A Cumslut

When we started swinging my wife was fine with me cumming on her chest and sometimes "accidently" on her face. Since we started she's become such a little cumslut and can't seemingly get enough of it. I've watched her ask for it on her face, in her mouth, on her tits, on her pussy. She recently let a co worker cum in her, but said she didn't like the way it made her feel even though she loves when it's me. However recently, while she was with other guys at a party, one was going at her and I heard her tell him "cum inside of me, I need it" and watched him put his load in her which she seemingly found exciting. But she didn't stop there as she let three other guys (demanded more like it) cum on her face and in her mouth. She can't get enough of it.