The couple are honeymooning in Florida

Julia Stamps and Lisa Slade took part in the service at the council's celebration suite at county hall on Tuesday.

Swansea Council is the first Welsh local authority to offer commitment ceremonies as an alternative to marriage and about 12 gay couples have taken part in the service since Christmas.

But the two women from Barry are the first to formally sign the partnership register and receive a certificate.

News of the ceremony comes just a day after the UK Government announced plans for gay and lesbian couples to be awarded the same legal rights as married couples.

The couple met almost five years ago when they were working in a discount food store in Caerphilly and Ms Slade was Ms Stamp's boss.

"We went out for a drink and she told me how she felt and it went on from there," said Ms Stamps.

It's just the same as a man and woman who want to show their commitment to their family, their friends and others Lisa Slade

They are going to Florida for their honeymoon but there is a big reception at a secret location later.

About 20 familes and friends attended the wedding.

Speaking about the proposed changes in legal rights, Ms Slade said: "The one thing that has worried both of us living together is that we would have to pay 40% tax if one of us passed away and that's a lot of money."

"This is not a moment too soon. There should not be any discrimination as we all pay our taxes."

Responding to criticisms of the ceremony, she added: "One thing I would like to say is what is the Christian norm?

"It's just the same as a man and woman who want to show their commitment to their family, their friends and others."

"Everyone is entitled to their point of view but I don't go around criticising other couples.

The ceremony took place in Swansea

"At the end of the day you' ve got one life and I'm going to enjoy it and be happy.

"We've both got a lot of support here from friends and family and a lot more at the reception."

The council says the partnership register and certificate allows couples to formally make their pledge to one another.

Many of the traditional features of a conventional wedding are on offer during the ceremony.

The non-religious ceremonies, which can last up to 30 minutes, have been a huge success, with couples travelling great distances to make their pledge.

Couples can choose their own readings and music, have a private ceremony or invite a large number of guests for a full celebration.

Legal rights

Some religious leaders have branded the ceremonies sinful and immoral and "a total waste of time and money".

Reverend Geoffrey Fewkes of Pantygwydr Baptist Church in Swansea said the ceremonies were a waste of time, when the idea was first introduced.

"They are not good socially, morally or financially," he said.

Gay couples will soon get property and pension rights

"These commitment ceremonies - whether held for gays or heterosexual are not legally binding - they can not and should not replace marriage. "

Anyone aged 16 or over can apply, but those under the age of 18 must have written consent from their parent or guardian.

Registration of a partnership does not bring with it any legal rights.