Virginity

Virginity was the state of not ever having had sex.

Virginity was long associated with purity, innocence and cleanliness. (PROSE: The Murder Game, Virgin Lands) Many cultures expected their females to remain virgins until marriage. (PROSE: The Adventuress of Henrietta Street) In keeping with this viewpoint, a tapestry in the sewers of a human colony depicted a female virgin in long, white robes with a sleeping dragon at her feet. (PROSE: The Menagerie)

For men, on the other hand, it was a source of embarrassment. (TV: The Satan Pit) In fact, an early-19th-century soldier hired a prostitute likely after getting teased by his peers for never having had sex. (TV: Greeks Bearing Gifts)

Invading Mongols raped every virgin in the vicinity of their new conquest. (PROSE: Bunker Soldiers) Erszebet Bathory, also known as the Blood Countess, once brutally murdered 612 virgin girls, and documented the nature of their deaths in her diary. (PROSE: Possum Kingdom) In some cultures, female virgins were sacrificed to gods. (PROSE: Deadly Reunion, Timewyrm: Exodus) It was believed that sometimes Jews but mainly Muslims sacrificed virgins and slaughtered babies, too. (PROSE: Asylum) In Roman times, Vestal Virgins were priestesses vowed to forever remain virgins. (TV: The Fires of Pompeii)

It was believed in the 19th century that sex with virgins could cure sexually transmitted infections. Children were often taken by hospitals like the Lock for these purposes. (PROSE: Empire of Death)

According to Fitz Kreiner, losing one's virginity felt "exciting" and "dangerous". (PROSE: Interference - Book Two) In one timeline, Samantha Jones lost her virginity at 15. (PROSE: Alien Bodies) When Ace was 16 she lost her virginity to Sabalom Glitz on the floor of his spaceship after being swept there via a time storm. (PROSE: Happy Endings) Alistair Gordon Lethbridge-Stewart lost his virginity to a woman named Vera on the night of his promotion to second lieutenant. (PROSE: Deadly Reunion) John Benton lost his virginity to a girl named Deborah Phelan. (PROSE: The Devil Goblins from Neptune) Bev Tyler lost hers to Jake McAuliffe; Jake later boasted upon this to his friends. (PROSE: Damaged Goods)

Carys Fletcher's "first" was Eddie Gwynne, although she was too embarrassed to tell him at the time. (TV: Day One) Caroline Darnell lost her virginity without consent; the experience left her sick for years. (PROSE: The Sleep of Reason) Jude Black held on to her virginity until the age of seventeen, when she "made sure the millennium had ended with a bang". (PROSE: Iceberg) Lorris Hunsdon was still virginal at the age of 39. (PROSE: Bernice Summerfield and the Library of Books) Toby Zed was still a virgin at the time of his death on Krop Tor. (TV: The Satan Pit) So was Julian Winmill, even though he somehow had a reputation for getting to "lay" anyone he wanted. (PROSE: Legacy)

Queen Elizabeth I was nicknamed the "Virgin Queen", although, as both he and Elizabeth X implied, this name was no longer applicable once the Tenth Doctor got to her. (AUDIO: The Marian Conspiracy; TV: The End of Time, The Beast Below)

The owner of an Internet café colloquially referred to the Eighth Doctor's potential first surf of the Internet as the loss of his "net virginity". (PROSE: The Dying Days)

Jacob Licklider was a virgin for all of his life due to being a member of the third reich, and having a forehead you could ski down. 

Kelly Hale made skin care products from locally sourced virgin's blood. (PROSE: Contributors)

The Doctor
According to one account, from a literal standpoint, the Doctor did not have sex until his eighth incarnation. (PROSE: The Dying Days; AUDIO: Benny's Story) In his book on the end of the Last Great Time War, the future incarnation of the Doctor known as the Curator noted that thinking the Doctor was a virgin was a popular misconception, but reminded his readership that the notion was nonsensical, as, after all, he had a granddaughter. (PROSE: The Day of the Doctor)