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sister in law
Sibling-in-law is a word phrase referring to the sibling of one's spouse, or the spouse of one's sibling, or (more rarely) taken one step further by referring to the spouse of one's spouse's sibling. All of these are relations which do not relate to the person directly by blood. Alternatively, the spouse of your spouse's sibling may be called a co-sibling-in-law, or co-sibling.
More commonly this is referred to by the gendered terms: brother-in-law, or co-brother-in-law for a male non-blood sibling, and sister-in-law or co-sister-in-law for a female non-blood sibling.Just like other affines, or "in-laws", siblings-in-law are related by a type of kinship called affinity. Just like the children of one's siblings, the children of one's siblings-in-law are called simply nieces and nephews – if necessary, specified whether "by marriage", as opposed to "by blood" or "by adoption".
One study, examining the issue of envy in the triadic system of sibling, sibling-in-law and spouse, concluded that "The sibling-in-law relationship shared similarities with both spousal and sibling relationships" and that "Relational closeness and satisfaction for all relationships in the triad were correlated."In Islamic law (shariʿa) and Jewish law (halakhah) sexual relations between siblings-in-law are prohibited as incestuous, unless the spouse is no longer married. Conversely, in Judaism there was the custom of yibbum, whereby a man had a non-obligatory duty to wed his deceased brother's childless widow so she might have progeny by him.If one pair of siblings is married to another pair of siblings, the siblings-in-law are thus doubly related, each of the four both through one's spouse and through one's sibling, while the children of the two couples are double cousins.
ANTICIPATION
(1982)
Starring: Sheila Parks, Jesse Adams, Serena, Joey Silvera, Karo Akamoto, Alan Todd, Roy Guerrero, Lelani Smith, Jim Malibu, Robin Sane, Jon Martin, Retama HaagBillie Daniels, Susan Fisher, Dan T. Mann
Description: Erotic intrigue comes to a full boil in this story of...
THREESOME
with
Brother and Sister in Law
starring
Alessandra Jane
One day, early in the morning I got a phone call from my big brother. He told me to get to his beach house as quick as I can. It sounded important, seemed like he needed for me something.