Yeah, my first time I yelped and squirmed and cried - but I WANTED it done, and wanted to pleasure the top guy, and was determined to let it happen regardless of the discomfort.
The whimpers, sobs, and groans sounds like ME! Except I don't care for doggy - I MUCH prefer to get it on my back, thighs wide, legs up, my most personal and intimate hole exposed, vulnerable, and fully accessible - like a girl usually gets fucked.