Every male you absorb spermatozoa from becomes a living part of you for life
https://mindfoster.co/1129/women-retain-and-carry-living-dna-from-every-man-with-whom-theyve-made-love-with/
ref -
https://www.ncbi.nlm.nih.gov/m/pubmed/16084184/
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0045592
