put my mouth where your diamond is
Take of on "put your money where your mouth is", meant to offer a "treat" to your loved one
"Sorry for that, but oh what a great 60 seconds! please, allow me to return a favor"
"Oh, you're just saying"
"No, I am willing to put my mouth where your diamond is"
"Oh, you're just saying"
"No, I am willing to put my mouth where your diamond is"