In response to: As people are getting more and more selfish, mean and sale purchase of Sex is developing rapidly in this world.Are we going to face sex crisis in future.
It's not entirely clear what you're saying.
You said:
"people are getting more selfish, mean, and sale"
I assume that you meant the word "sale" in its French sense:
"dirty" or "perverted".
Your comment reminds me of a Bible verse actually.
Mt 24:12 And because iniquity shall abound, the love of many shall wax (become) cold.
And yes that is happening.
I don't think there is any "sex" shortage.
But there is certainly a "love" shortage.