Northern Ireland could have permanent representation in the Senate, it emerged today.
Leader of Seanad Éireann Donie Cassidy said he has proposed the move to boost cross-border relations.
His plan has yet to secure Government backing, but he is confident there is support for Northern Ireland filling approximately five seats in the upper house.
His comments follow Northern politicians taking part in Dáil proceedings for the first time today during the inaugural meeting of the joint committee on the implementation of the Belfast Agreement.
The Westminster MPs from the North were invited to take part in the Dáil committee to help implement the Belfast Agreement.
Speaking after the meeting the chairman and Fianna Fáil TD Noel Treacy said the occasion "was a truly historic occasion for both the Houses of the Oireachtas and the island of Ireland."
In addition to the 15 Oireachtas members of the Joint Committee, the meeting was attended by four Northern Ireland Assembly members including Michelle Gildernew and Pat Doherty from Sinn Féin and Dr Alasdair McDonnell and Eddie McGrady from the SDLP.
The Northern Ireland representatives to the committee can take part in debates but will not have a right to vote or to move motions and amendments.
However, Mr Cassidy said he felt strongly that the Seanad could be increased by five members to allow for Northern representatives nominated by the Taoiseach.
"I think it would be welcomed. I'd expect to get not only full government support but also cross-party support," Mr Cassidy said.