The Cockfight that wasn't (ish) 2

As we talked in the pub prior to the start of the fun, although he had decided against cockfighting me for her, we had continued to chat about sexual rivalry between men where women were concerned. I mentioned that it had been established by microscope that when the semen of two men was introduced together that the rival sperm from the two men fought and killed each other to prevent egg fertilisation by sperm not of their own kind. My couple had not heard of this but that it had interested and titillated her became apparent as I was lying on the bed with her recovering in readiness to taking her again. She motioned hubby to come and join us giggling and saying “you fuck me now R****t – I want your spunks to fight!”. He went right down on her, greedily kissing her fanny which was still glistening with me. Then, as she lay fondling me, he mounted her and quickly shot his load deep into her, mixing our spunk, and so in a way, we had two cockfights in the end.