User blog comment:Crimson and Darkness/Shin DxD 3 discussion/@comment-39089654-20190917054047/@comment-2208155-20190917073546

Yeah.

Rias even invited Lint while she was in one date with Issei(I think that in DX.4) in a shopping mall. Lint and Kunou enjoyed the place. Rias even said watching them that she likes the girls and that she wants one daughter.. But she thinks that the first will be a son.

Seems that part of the reason is that she had the same of life that xenovia in the church.. At least Irina had one father and mother and had one childhood.