I thought before not remembering his sexual encounter with NC, this guy also didn't remember being naked with her, and pretty much before that told CPD he barely knew them (BC & NC).
ISTR Reading the usual flow of testimony goes something like this, when accused of being bitten by the defendants dog.
1. I don't have a dog.
2. OK, you have proven that I do have a dog, but my dog does not bite.
3. OK, you have proven that my dog does bite, but it didn't bite you.