Her only full sibling, Anna, died at age 5.

Then the other parent, to save them all, reveals an early adultery that produced one of the young people, so they are not full siblings.

Like his full siblings, he was conceived via natural mating.

The friend is now pregnant with a child who will be this mother's own sons' full sibling.

"I want my son to have a full sibling," she said.

One can always rely on a full sibling because of badenya.

The child will have a mother and father and most likely one or more full genetic siblings.

Second assumption, that they might be full siblings of the usual sort.

Her family included five full siblings, and an additional six half-siblings from her father's first marriage.

In this case the unshared parents are full siblings.