I'm a lesbian who wants to be a parent someday.. conflicted..?

A les couple I know have a terrific set of twins had with donated sperm from a mutual friend/guy. They are better parents than some straight people I know. Kids are well adjusted and happy as can be and will probably grow up more tolerant of differences in others. No, the kids do not know the sperm donor but can meet him after 18 if they want to.