This ends up being more a question about definitions and philosophy than biology, because “clone” isn’t something traditional incest laws or social norms were built around.
Biologically:
An identical clone would share essentially 100% of your DNA.
That’s more genetically similar than an identical twin, who also shares nearly all DNA.
But the clone is still a distinct person with their own consciousness, memories, and agency.
So different frameworks give different answers:
Why some people would call it incest
Incest is usually defined as sexual relations between close genetic relatives.
A clone is genetically closer than:
a sibling,
a parent,
or even an identical twin.
Under a purely genetic definition, it absolutely qualifies as “close kin.”
There’s also the psychological angle:
the clone is literally derived from you,
effectively your genetic duplicate,
which many people would intuitively place in the “family/self” category.
Why others would not call it incest
Traditional incest assumes a family relationship:
parent/child,
siblings,
cousins, etc.
A clone is weird because:
it isn’t your descendant in the normal sense,
not your sibling in the reproductive sense,
not an ancestor or cousin,
and not produced by two parents.
Legally and socially, incest usually depends on recognized kinship structures, not just DNA overlap.
So someone could argue:
“This is not incest because the clone is not a relative — it’s a separate individual created artificially.”
Why some would compare it to masturbation
This comes from the idea that:
the clone is genetically identical to you,
essentially “another you,”
making sex with it feel self-directed rather than interpersonal.
But this analogy breaks down because:
masturbation involves one conscious being,
while the clone is a separate mind with independent thoughts and consent.
If the clone can disagree with you, resent you, love you, or leave you, then it’s clearly not just “your body.”
So psychologically/philosophically, it’s closer to sex with another person than masturbation.
The closest real-world comparison: identical twins
Identical twins are genetically almost indistinguishable from clones.
Sex between twins is universally treated as incest socially and legally, despite being between two separate people.
That analogy pushes many people toward:
“Yes, clone sex would count as incest.”
But there’s still a distinction:
twins arise as siblings within a family structure,
a clone may not occupy any established familial role at all.
Bottom line
There’s no universally accepted answer because human culture, law, and ethics don’t yet have settled categories for cloning.
You can reasonably frame it as:
incest (because of extreme genetic relatedness),
ordinary sex between distinct individuals (because the clone is a separate person),
or something partially self-directed like masturbation (because of total genetic identity).
Philosophically, it’s probably best described as:
sex with a separate person who is also genetically yourself.
Which is exactly why the category becomes unstable.