Dr Elna McIntosh returns, and this time has Petrus Laubscher from the Androcroys Sperm Bank. Sperm fascinates Dr McIntosh, and with Petrus the two open up on a whole host of topics around the substance. Gareth weighs in around the process of sperm donation, how it takes place, and if he would be a good candidate. So much to learn here, and so much you should know from these experts.