you're right in saying that the body cannot store excess protein. however, it does get converted to fatty acids eventually one the protein is deaminated. if you're interested in the pathway, google is your friend.

as for the question on spanking the monkey. ffs, it's not like every shot has 24g of protein in it.

you guys probably either cum bucket loads or have the ability to generate copious amounts of serotonin.

anyway, some reading up for you guys: http://www.ncbi.nlm.nih.gov/pubmed/11125766

it's a paper regarding sexual activity on male athletes.