The act of a girl being titty fucked whilst she takes a dump
Guy: The smell of your shit is making me horny!
Girl: Get that boner over here and fuck these titties!
Guy: Yeah, Skank, I love that Tittycaca!
Gaping WithOut One's Knowlegde
A spread open butthole unbeknownst to its owner
"Holy Crap, did you just fart?"
"No"
"Then you must be GWOOK and I can smell your inner anus"