The reality TV personality said that she is not bothered about having sex in front of the cameras and admitted to having "competitions" with the rest of the cast.
"It's just like normal sex," she told Heat. "You totally forget that the cameras are there.
"We have competitions and ask the crew, 'Who looks like the best at sex?' And they always say on the sly that it's me. If only there were BAFTAs for that."
Crosby added that while the latest series of Geordie Shore is the "dirtiest" yet, she feels the cast have been more in touch with their feelings.
"[It's] more emotional too," she said. "There are going to be some surprise relationships."
Geordie Shore stars Jay Gardner and Rebecca Walker have recently confirmed their exits from the show. New cast members are expected to be brought in for the upcoming fourth series.
Geordie Shore continues Tuesdays at 10pm on MTV.
Watch Digital Spy chat with Geordie Shore's Charlotte and Rebecca below: