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Opposite-Sex Twins and Adolescent Same-Sex Attraction

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Monozygotic twins discordant for sex.

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The Sex Lives of Conjoined Twins

Please enter your User ID and Password below. Becoming a parent is a time of excitement and joy, often accompanied by feelings of worry and uncertainty. Discovering that you are to be a parent to twins, triplets or more may magnify these feelings. It is also possible that being a parent in a same sex relationship may make the challenge seem isolating and overwhelming. Whether you are the birth parent, second parent , adoptive parent or step parent Tamba is here to help you and your partner raise your twins, triplets and more.
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Every parent of twins faces the question "Are your twins identical or fraternal? Many think that being identical twins refers to how twins look and not how they form. Take a look at the biology that determines the sex combinations that are possible with identical and fraternal twins. The terms identical and fraternal don't describe what the twins look like, but actually how they form. Identical monozygotic twins are always of the same sex because they form from a single zygote fertilized egg that contains either male XY or female XX sex chromosomes.
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