It depends if you plan on having sexual activities then no it is wrong but if you just want to have the others company for life then it is fine
"The Concubine's Children" was created in 1994 by Denise Chong.
The Russian Concubine was created in 2007.
The Concubine - novel - was created in 1966.
Fragrant Concubine was born in 1734.
The Magnificent Concubine was created in 1962.
The Concubine's Secret was created in 2009.
Concubine Qi died in -194.
Fragrant Concubine died in 1788.
The Russian Concubine has 517 pages.
The Concubine - novel - has 216 pages.
The duration of Farewell My Concubine - film - is 2.85 hours.
The duration of The Great Conqueror's Concubine is 2.05 hours.