noun, noun which may take the genitive case particle 'no'
same sex
Refers to people of the same sex or gender. Often used attributively with の, as in 同性の友達 (same-sex friend). Contrasts with 異性 (opposite sex).
See also: 異性
同性の友達と旅行に行った。
I went on a trip with a same-sex friend.
この法律は
This law also applies to same-sex couples.