A survey reveals that more than two-thirds of people living in New York hear their neighbors' moaning, bumping and grinding during sex.
The news and information site for homeowners BrickUnderground.com found that nearly half of the 400 residents quizzed heard their neighbor having sex.
Most common sounds heard through the walls were thumping (60 percent), moaning (56 percent), screaming (28 percent) and "other" (23 percent), the survey showed.
"What this shows is if you live in New York City, you don't need to worry about keeping quiet in bed on Valentine's Day, because the chances are slim that someone is going to complain," the New York Post quoted BrickUnderground's founder Teri Karush Rogers, as saying.
"On the other hand, the morning-after elevator ride could be awkward," Rogers added.
Resident Melissa Buck, 29, of the Upper East Side, revealed: "It's like a train wreck-you have to stop what you're doing and listen, even if it's awful.
"A friend and I were cooking dinner at 6:30, while it was still light out, and we heard the neighbors. Why can you always hear the girl? It lasted probably 10 minutes, and we had to stop cooking and listen."
Another dweller Leslie Vandike, 30, of East New York, Brooklyn, added: "Last summer, I was having a barbecue. Everybody was outside. Suddenly, we hear this loud screaming," he said. "Upstairs, our neighbor was having sex. Everybody was like, 'You go, girl,' cheering them on.
"We never heard anything else after that."