

Such a response closely resembles the xenomorph’s origins in the virulent mutagenic pathogen known as Chemical A0-3959X.91 - 15, more commonly recognized as the “black goo” prominently featured in Prometheus. The xenomorph, gestating inside its living host, develops physical traits similar to its host by studying its cellular makeup. Based on its physical composition, Powell said, “It could just as easily fuck you before it killed you, made it all the more disconcerting.” The DNA Reflex Line producer Ivor Powell affirmed in an interview that the xenomorph’s primary objective was to inspire sexual horror in the viewer.


The alien life cycle, O’Bannon explained, is not a straightforward depiction of female human pregnancy but of “cross-species homosexual oral rape.” In Alien Evolution, a documentary charting Alien’s creative process, screenwriter Dan O’Bannon confirmed that the aliens’ use of humans as living hosts was intended to disturb male viewers.
