Sperm donor wanted for lesbian couple

We are a lesbian couple looking for a sperm donor, to be as involved as you wish (within reason). We already had a donor and had a few tries with him, but he started a relationship recently and ended his donations, so we are trying to find another one as soon as possible. Preferably someone around the Coleraine area, we can meet you somewhere or accommodate. You will be required to donate around the same time every month.

Genuine people only please, as we have already had our hopes dashed and this is hard enough without people messing about thinking this is great fun.

Thanks

PS - Before you reply, 'donate sperm' does not mean that either me or my girlfriend are interested in having sex with or for you, so don't reply saying you'll only do it if one or both of us sleeps with you!