Poor lass looks constipated. You'd think if they knew we'd be viewing them internally in MRI-scanner-o-vision while they were fucking, they'd both have taken a dump beforehand. I'm just saying.

I prefer this version, not because of the poop (ew) but because now it doesn't look like he's fucking tightly-packed soft boiled eggs.

Poop? All I see is an empty rectum. Perhaps a bit spacious then it would normally be, but I don't think the graphic was meant to imply anything scatological.