Female female male threesome. My bit on the side is my best male friend. (Photo by Laoshi/Getty Images)

Close up of a couple, with the woman holding the man's knee, underneath a table. (Photo by Peter Dazeley/Getty Images)

Office sеx. (Photo by Orange-Melody/Getty Images)

Woman on phone in hotel room. (Photo by DreamPictures/Getty Images)

Two young women embrace in bed together, both wearing white lace underwear. (Photo by Popperfoto/Getty Images)

Couple getting intimate on couch. (Photo by Vincent Besnault/Getty Images)

Three female friends dancing in nightclub. (Photo by Cultura Creative (RF)/Alamy Stock Photo )

Mourning woman. (Photo by Rich Legg/Getty Images/iStockphoto)