Heh, someone on Wizards just had a creepy idea. Lower it to 3rd level and sell Psionic Tattoos of Euphoria.
I'd already thought this power might be too high-leveled. Any thoughts on its level?
The way that you've been describing this, it seems almost as much psychometabolism as telepathy. Is it physical stimulation (stimulating dopamine production, for example), or just transmitting "joy"?
Well, I'm thinking you are using telepathy to stimulate the brain. Basically in scientifical terms you are applying electrical current to that certain bit. Didn't really think that was all that psychometabolic, using psionic energy instead of electricity. Also didn't want you to have to touch the being.