There are two main paths to
consanguinamory, or the objective reality that at least two closely biologically related people have sex, and perhaps an ongoing romance or marriage-style relationship. While the prejudiced may dismiss all consanguinamory as the same (in their small minds) inexcusable behavior, the differences in these paths do have an impact on the participants and those around them. This is why people who are on one path may not understand those on the other, or want to be associated with them.
One main path to consanguinamory is Genetic Sexual Attraction (GSA). GSA is an extremely intense attraction that may occur when close biological relatives meet any time after puberty either for the very first time, or the first time since the youngest went through puberty. These situations are likely to increase due to increased human mobility and the high rates of co-parents who do not stay together. Whether a marriage that involved at least one child ends in divorce, or a one night stand results in pregnancy, or anything between, a man and woman who have a child together may go their separate ways, often going on to have more children with others. The situations are are also likely to increase due to increase in the use of donated eggs, sperm, and embryos to have a child. In addition to the various forms of adoptions, some governments, such as some states in the US, allow someone to bring a newborn to a hospital, police station, fire station, etc, and surrender custody of the child with no penalty.
As you can see, there are many situations in which close relatives, such as full or half siblings, or a parent and child, can be reunited post-puberty.
Only some reunification/first contact involves a person experiencing GSA, but some estimates are as high as 50%. Even if there is mutual attraction (both or all, if more than two experiencing GSA), it doesn't always lead to sex. However, GSA is so strong that if it is mutual, it often does lead to sex sooner or later. The sex may not last for any number of reasons. In addition to all of the other reasons people may stop having sex with each other, there are external pressures on such relationships (like criminal law and social disapproval) or a conflicted conscience on the part of one or all involved due to years of sex-police thinking being drilled into their heads.
GSA is almost always a painful path for one reason or another.
Sometimes GSA leads to lasting, happy consanguinamory, but even if any internal pain is a thing of the past, there might be pain from outside interference. That's something I am trying to help change.
With the GSA path, the people usually have established identities and lives in which they are not known as related. For example, half siblings find out about each other in their twenties; the friends and coworkers of one, or both, don't know they are related if they haven't told them. Also, they usually don't have that history of the social connection to their biological roles. They haven't been functioning as brother and sister. A son given up for adoption at birth meets his birth mother twenty years later. He has a mother: the woman who raised him, if she is still alive. Still, someone experiencing GSA may seek to have that familial relationship that would have been expected should there have never been a separation. This is not always possible; it can be very difficult. The history is not there, and nobody can go back to being nine years old; nobody can reverse time.
In GSA relationships, as with any other relationship, it usually takes time for the people get to know each other. Almost always, they find remarkable commonalities.
Those who know of their biological relation may try to break them up or separate them, sometimes by force of law. This can be especially insulting if the person or people trying to douse their love was somewhat responsible for the original situation in the first place. Their actions denied these GSA-experiencers all of the typical parent-child or sibling relationship experiences; after those experiencing GSA have reunited (or met for the first time) and found happiness with each other, this happiness is threatened or taken away.
If the lovers don't want someone else knowing that they are, in fact, lovers, they may be able to use the cover story of making up for lost time with a long-lost relative. (In actuality, an enjoyable consanguinamorous relationship
is, in their case, the compensation for that lost time.)
If the sexual aspect of the relationship ends, and does so acrimoniously, the risk includes again losing a long-lost relative. However, if the relationship lasts, it can be a very exciting and fulfilling one.
The other main path to consanguinamory involves close relatives who didn't grow under the separation conditions involved in GSA. This includes cousins (who can legally marry in some places), but it also includes...
-full or half siblings, either raised in the same home or interacting throughout childhood
-parents and their adult children, either with the child raised in the parent's home or with that parent throughout childhood through shared custody or visitation
-aunts/uncles with their nieces/nephews (close in age, or after all are adults)
-grandparents and adult grandchildren.
Cousins and siblings are probably the most common examples of consanguinamory.
On this path, consanguineous sex may begin (and sometimes end) as youthful experimentation between minors who are siblings, cousins, or aunts/uncles with nieces/nephews who are close in age. Sometimes it is more than experimentation, and a full-fledged love affair develops, and may continue into a marriage in everything
but (usually) law. Or, it may begin later, at any in their adult life, as young singles or after a divorce or breakup or as seniors.
The consanguinamorous dimension of a relationship, when one person is significantly older than another, such as parent-adult child, may be added at any time after the youngest person reaches the age of majority. This can and does happen without any "grooming." (Grooming and abuse cases are another matter that I'm not addressing here, as I am writing about consensual, loving, healthy relationships.)
Differences from the GSA path include that the lovers have that existing social relationship with the familial context. Consanguinamory on this path builds on that, adding another dimension. Who is more loving, caring, or trustworthy? They already know each other extremely well. Still, there is even greater potential for inner conflict than there is with GSA as one or all of the lovers deals with the notion of "this is wrong," due to years of sex-police thinking being drilled into their heads for no good reason.
Lovers on this path may have had more opportunity to share physical intimacy, but a more difficult time hiding the true reason their demeanor lights up when their (secret) lover walks into the room. However, there is a long tradition of adult siblings or parents and their adult children sharing residence, so if they develop a spousal-type relationship, it can easily be concealed from the finger-waggers with that cover.
If the sexual aspect of the relationship ends, and does so acrimoniously, the risk includes general family disruption. However, if the relationship lasts, it can be extremely intense in a positive way, full of a layered and passionate love.
As I have already said recently, most romantic or sexual relationships don't last; if they did, most of us would still be in our first ones.
But they should be allowed to develop and continue, or end, on their own merits, without interference from overbearing law enforcement, bullies, or self-appointed sex police. There are happy, health, lasting consanguinamorous relationships, and I say good for everyone in them. May they continue to share their fun, joy, and love. 
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5:07 AM
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Another news item out of Zambia details the prosecuting of consenting adults in an attempt to break up a marriage. If you think this only happens in Africa, you are sorely mistaken. Where I live, in the US, many states still prosecute in these cases, and it happens in many other countries as well. Chambo Ng'uni reports at dail-mail.co.zm...
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