The science says swallow…at least during pregnancy, according to this article entitled “Correlation between oral sex and a low incidence of preeclampsia: a role for soluble HLA in seminal fluid?“.  You need a subscription to read the whole article, but this excerpt from the abstract should suffice: The present study shows that oral sex and swallowing sperm is correlated with a diminished occurrence of preeclampsia… Of course, if that’s not enticing enough for you, … Read entire article »