There's a long standing debate in sex research about whether female orgasm improves chances of conception. Hippocrates thought it did, Aristotle disagreed. [ you never see anything written by Mrs. Hippocrates or Mrs. Aristotle, but I'd bet a few drachmas that Mrs. H. had a spring in her step ].. The idea is that uterine contractions draw sperm in, thus aiding conception; the " upsuck ' factor. Now for the good part [ probably involving studies of MDN in action ]: Danish Sex Research indicates that by stimulating sows while they are artificially inseminated increased conception rates by 6%. So... Danish Pig Farmers are ' encouraged' to follow government guidlines - a five-point stimulation plan for pleasuring piggies. This involves things like hoisting up her back legs, and pushing 'rhythmically 'with a fist or knee near her vulva... some farmers even go so far as to ' jostle' their mammaries with their boots. BTW. Pigs and men are the only creatures on the planet that like to fondle breasts.. Who knew??.... another case study from the secret files of MDN.