I thought the same thing, however I imagine if your extremely obese and own a vagina, it's probably extremely hard/invasive to find the monsters urethra. I imagine there's alot of folds and fat obstructing everything. That's why I was amazed to find out someone knocked up the ol' Mess Dumpster. Surprised they braved the smell, surprised they found a bed to fit her on, and even more shocked that they didn't stick the turkey baster in her belly button crater on accident.  I think I just made myself sick typing that.