The CumUnion is an international group of sex clubs for gay and bi men to have sex. They can jack off together, suck dick or be sucked, fuck or be fucked, or [whatever they [want sexually.
They have a CumUnion in Colorado Springs and a bunch of us cadets are planning to go there this weekend!
The act of taking your cock and "blessing" a girl (or guy) with the tip in a cross formation on the forehead. You need some precum to do this properly.
Katy: Did you and Fidy role play last night?
Jules: Yep! He dresed up as a priest and gave me Cummunion. It was hot!
Katy: Blessed are the sinners...