Stomach bump 

When your cock is sooo big (or if she is really small) it shows a little or big bump in her stomach where your tip is.

"Omg carlos was so big he gave me a stomach bump"

Stomach bump by Baka baka oniii chan~ May 5, 2018

Stomach Bump 

Strange bump appears on your stomach. It could be a hernia. But it might be a lost gerbil.

Yo check out my stomach bump.

Stomach Bump by woofus70 October 29, 2008