Sometimes psi-vamps drain within their romantic relationships. That's how I did it, before I was aware of what I was. I continually formed longterm relationships with people that would listen to my every whim, and I'd be a shit disturber and cause fights when there needn't be any, just to attain the intense energy I needed. Fighting with loved ones really does drain the other person. For me, it was a high.

Same with sex. Another good source of pranic energy......