Police made an arrest Tuesday in a deadly stabbing in Park Slope, they say was the result of a love triangle gone wrong.

24-year-old Christopher Membreno is facing charges including murder and criminal possession of a weapon.

Police say he got into some type of dispute after being involved in a sex act, with a woman and her boyfriend yesterday.

Sometime following, cops say Membreno fatally stabbed 20-year-old Manos Ikonomidis, inside an apartment on 16th street.