Firstly, it makes your company look like it's run by people who are sexist because you decide to explicitly bring up two actresses and having sex with them in a job posting. This makes me wonder what the working environment would be like. In the posting you might have got away with "Would you rather spend time with Angelina Jolie or Linus Torvalds?" but you went with asking whether I'd rather have a threesome sexual encounter with those two actresses.
Secondly, the posting doesn't do much to tell me why your company is interesting. You mention some characteristics of the application in the part you term SEO but you don't mention specifics such as datastorage platform or programming language.
Thirdly, since you are in India and I don't have much experience of India a job posting like this on the front page of Hacker News makes me wonder whether this sort of sexist imagery is normal in India and that doesn't attract me to the place.
Lastly, this isn't a question of humour. Whenever sexist, racist, homophobic imagery is used in the computer industry a common retort from the people who use it is that the people 'offended' need to get a sense of humour. How funny would it be to you if I posted a job posting that made it clear that I was biased against Indians?