Kissing the Brown Flower
"Kissing the Brown Flower" is the sexual act of inserting a Hershey's Kiss in the ass-hole of your partner, and then "eating out "and/or "tongue darting" the melted Hershey's chocolate as it drips out of the anus.
John shoved a Hershey's Kiss up Heather's asshole with his thumb, and then totally started kissing the brown flower.