>>13307354They would be 100% genetically yours. This is all my own speculation, but I believe that the reaction is like a primer that affects the ovum in a sort of way that it readily accepts future sperm cells that are most similar to the "first time". From the papers I've seen, one example would be: 1 bigger sterile male ejaculates in developing ovum of female, 2nd male then impregnates female, the results are bigger offspring more in line with the 1st male.
>>13307377It's in the "sperm ejaculate", but it has nothing to do with the spermatozoa cells. Earlier in this post I mentioned sterile male insects were used as part of the experiments. Most researchers in the subject think it is another part (protein maybe?) of the ejaculate that reacts with the ovum.
>>13307482>>13307730Yes this guy is correct. 100% genetically yours, but the phenotype resembles the previous male.
Also keep in mind that the experiments, fly experiment particularly, concluded that it only affected the females with a developing ovum. I don't know exactly how/if that would translate to mammals, but if your gf lost her virginity say past 18 then I don't think she would be affected by telegony (again only IF it were the exact same between mammals and flies).
archive.is/nQhRuncbi.nlm.nih.gov + /pmc/articles/PMC4282758/
Here is the fly paper I read. On the page it links to all other papers sourced in this paper and all other papers that sourced this paper after the fact. Using sci-hub you can easily spend a few hours exploring the relevant web of papers and all papers relevant to those and so on. Enjoy, and sorry for the late reply.