Making a Diamond shape with your hands in the doggie style position and then inserting your thumbs in your girls butt while having sex.
I gave her the diamond back sneak attack and and I held on as long as I could.
The act of sitting on a girls head farting and shitting down her neck while you jerk off and skeet on her head. While sticking your toes in her puss making her squirm like a diamond back
I so wanna bend your mom over and give her the ole the diamond back.