"Saving their ass"?
http://www.u.tv/News/An-ugly-carnival/87b0bff7-da6e-4bc3-b3b5-a593fb986ca4
"While many allied troops were sympathetic to France's suffering under the occupation, a considerable number had their worst prejudices confirmed by what they saw. American troops who had never been abroad before tended to see France itself as an enemy country, despite the attempts of the military authorities to inform them of the true situation. Some officers gave orders to arrest or shoot any French civilians encountered in the immediate invasion areas. Certainly French men and women found with German weapons were shot on the spot before they had a chance to explain. The possibility that they might have been collecting these weapons for the resistance never occurred to the soldiers concerned.
An extraordinary battlefield myth soon spread like wildfire. This maintained that young French women, the lovers of German soldiers, were fighting as snipers against the allies. These rumours were soon picked by British and American war correspondents eager for sensational stories. But a number of incidents also found their way into official reports without any doubts expressed about their authenticity. For example a lieutenant with the American 1st Infantry Division reported that they had encountered "four women in German uniform as snipers in trees and five in the town. I only saw one closely enough to identify her as a woman. She wore the German uniform and looked like a French woman."
Churchill heard these stories of women snipers during his visit to Normandy on 12 June and wrote about them to Anthony Eden on his return. British officers, however, later became increasingly sceptical of these "latrine rumours".
[...]
"The French, meanwhile, were shocked by the attitude of some American soldiers, who seemed to think that when it came to young French women "everything can be bought". After an evening's drinking, they would knock on farmhouse doors asking if there was a "mademoiselle" for them. Supposedly useful gambits were also provided in daily French lessons published by the US Armed Forces publication Stars and Stripes, including the phrase for "My wife doesn't understand me."
Americans and British saw liberated Paris not just as a symbol of Europe's freedom from Nazi oppression, but as a playground for their amusement. "As we neared the city we were seized by a wild sort of excitement," wrote Pogue. "We began to giggle, to sing, yell and otherwise show exuberance." But when Pogue reached Paris, he was shaken to find that American military authorities had taken over the Petit Palais and erected a large sign announcing the distribution of free condoms to US troops. In Pigalle, rapidly dubbed "Pig Alley" by GIs, French prostitutes were coping with more than 10,000 men a day. The French were also deeply shocked to see US soldiers lying drunk on the pavements of the Place Vendôme. The contrast with off-duty German troops, who had been forbidden even to smoke in the street, could hardly have been greater."