I would be very interested to hear anyones experience with known sperm donation.My situation is that i have a very stable,loving marriage with two beautiful daughters - our family is complete.My wifes sister 'E' who is a single,successful ,career woman has made the decision to 'go it alone' and have a baby - she will make a wonderful mother and has a strong family network around her for support.My wife and i have discussed the option of donating my sperm in the past with 'E' should she come to the big decision - she has now reached that decision and i would like some feedback.I am very confident about my role as donor both now and in the future but am very open to hear experiences or thoughts from other people.We intend to be completely open with my children and my sisters in laws child in the future.I am completely honoured at the prospect of being able to offer this gift to someone who i have immense respect and 'love' for - but want to make sure that i am fully armed with as much information as possible before we take it to the next step.