[bineeshm]

But, where is the fun in that? 
A husband and wife, loving each other, having sex with each other. And it just go on, and on. Where is the fun in that?

I think the intriguing sex between the husband and wife is also fun, Krish. Look up Modern Family. Although I have only seen a few episodes, Phil and his wife are honest with one another, yet they still act out certain fantasies to liven up their sex lives. For it to be engaging, the plot must be compelling and the situations must be interesting. I agree that the tale could not be as lengthy as this one. Yet, it will be great. This is the primary reason I'm asking reputable writers like you to give it a shot.