Responses
I just assumed it’s because they had sex before this.
You mean before he presented? So he remembers having sex with him in the past but he doesn't remember what other stuff happened between them?
So, I kinda dropped this back when the ML was drugging the MC so he could turn him into an omega. But didn't the MC find out and get mad and distance himself from him? And there were some issues with a manipulative older acquaintance/doctor? Did he get amnesia or something or what happened in between?
Also, small detail, but didn't MC say he didn't remember them having sex after presenting, so how did he later say to ML "oh I thought you're experienced cause you were so good at sex"???