lblg is like ddlg or mdlb
(lblg:little boy
little girl)
(ddlg: daddy dom
little girl)
(mdlb: mommy dom little boy)
(ddmd: mommy dom daddy dom)
essentially it is when you and your partner are both a little it is not a wrong weird or bad thing its fun enjoyable an what i have found is a lot of people with mommy or daddy issues get into it you and your partner can also switch from lblg to ddlg mdlb ddmd
you can do it all as long as you are happy :)