This page is a permanent link to the reply below and its nested replies. See all post replies »
AthrillatheHunt · 51-55, M
ThePerfectUsername · 70-79, M
The person giving the compliment experiences a small bit of dopamine after giving the compliment
I suspect nitric oxide has a role to play too:-
Nitric oxide triggers the action of guanylate cyclase, an enzyme that helps activate an erection. It works by prompting the release of a body chemical called cyclic guanosine monophosphate (cGMP). This causes the smooth muscle cells in the penis' erectile tissue to relax.
@AthrillatheHunt