When two Asians are having sex, one will use chopsticks on his/her female partner. Using one to manipulate the clitoris and the other to apply pressure to the g-spot.
Asian1: can you leave? I'm picking the lock on my girlfriend.
Asian 2: okay man, I'll leave.
The act of having sex with a chick and either her or you sticking 2 fingers inside her vagina at the same time as his dick; hence, it is like picking a lock.
Dude!! This chick I was fucking last night was totally 'lockpicking' herself but after a few minutes, I took over.