The men of Cosmos annual Bachelor Bash took the stage once again at the Mall of Asia Concert Grounds on Saturday, September 5. This years bash, themed .brHunk actor Derrick Monasterio pulled out a daring stunt during the Cosmo Carnival Bachelor Bash 2015.brbrCue the squeals and feels! Highlights from the Cosmo Carnival aka Bachelor Bash 2015! VIDEO: Insel Culla, Jean Saturnino, Trina Elefante, Niki Custodio .brActors Alex Castro and Alex Medina private parts were grabbed groped by fans during the Cosmo Carnival Bachelor Bash 2015. Alex Castro at Alex Medina .