 Lavrinovič has a twin-brother, Kšyštof, whom he played with at UNICS Kazan in the Russian Superleague, as well as with on the senior men's Lithuanian national basketball team.On October 18, 1998, Darjuš Lavrinovič, his twin-brother Kšyštof and their cousin raped at that time a seventeen year old girl.On June 25, 1999, court sentenced the twin brothers for 5 years in prison and the cousin for 6 years in prison.