I don’t know how long someone’s energy stays in your aura but I do think that we exchange energy when we are intimate. This is one of the reasons that James and I don’t go to swinger’s clubs anymore. I feel like I’m at a point where I need to be more selective about who I exchange energy with. The last time I had casual sex with a man, I could feel him for weeks afterwards and was getting intuitive hits about things in his life. He’d been in Afganistan, and although he hadn’t been physically injured, the trauma was there, masked by a living fast and free persona. It was a real wake-up call for me.
Interestingly, I can have casual sex with women and be OK. I just have to be more selective about men, which would support what you said.