胤
blood relative
On-Yomi: イン
Koohii stories:
1) [thecite] 4-10-2009(23): The cocoon like piece of flesh between human legs can produce blood relatives.
2) [Katsuo] 7-10-2007(14): I think Halpern's keyword "progeny" is a better fit for this kanji. Then: Progeny – a cocoon-like piece of flesh that drops out between two human legs.
3) [mantixen] 31-7-2009(10): The body part between Venom's legs can produce blood relatives.
4) [Meconium] 10-3-2010(3): Imagine a young alien still wrapped in its cocoon. Because the aliens are born in hives, it doesn't have to be the parent that comes to feed it, merely another member of the hive, who is a distant blood relative. The blood relative brings the cocooned alien infant a piece of meat as its first meal - a pair of disembodied human legs, ripped off an individual from the planet they just colonised.
5) [kapalama] 4-9-2011(1): 落胤 = 落し胤 , 胤違い =種違い, 名 : 平田篤胤 blood relative (#2921 胤) イン, たね … Parts: 儿, 幺, 月 … Story:The usual Monthly visit of a woman's Blood Relative ends up just being Body parts on the Cocoon, spilt between the Legs (agreeing with Progeny being a more useful keyword.).