Taipei: Taiwan is shaping up to become the first place in Asia to allow same-sex marriage.

Alongside its vibrant youth culture, gay and lesbian causes have gone from scorn to acceptance in barely a generation, to the point that parliament is now expected to soon legalise same-sex marriage.

Cindy Su, left, and Lana Yu hold their babies in Taipei, Taiwan. Credit:AP

President Tsai Ing-wen, Taiwan's first female head of state, supports the idea and MPs are working on three same-sex marriage bills, one of which could be passed within months.

About 80 per cent of Taiwanese between ages 20 and 29 support same-sex marriage, said Tseng Yen-jung, spokeswoman for the group Taiwan LGBT Family Rights Advocacy, citing local university studies, according to a report by Associated Press.