Originally Posted by meenalover2000
is it ok if i do? give some suggestion how can got thru?
It's a really straight forward solution. Your semen is potent that you have proved by making your wife pregnant. Now if the same semen has to work on your sister in law, then she should be fertile enough to take it.
I suggest you speak to your sister in law, as to whether her husband is good enough to give her a child. If not, then you should start persuading her to look for other options (which is YOU). Give her confidence that you can keep the secret. Don't tell your wife. Keep a secret and enjoy and help your sister in law enjoy.