[J-Gel]

Last night I unfortunately received a ticket for malfunctioning brake lights while driving home.. but to my surprise it seems that I do not simply have a dead bulb that needs replacing, but perhaps some screwy wiring that needs to be sorted. As you can see from the two photos I've attached, the photo with the driver side brake light illuminated (open palm) is when I am depressing on the brake pedal, and the photo with the passenger side light on (fist) is when I have let go of the brake. Both left and right brake light will not illuminate at the same time, one while I am braking, the other when I am not. Both photos are with headlamps on. Has anyone encountered this before? Any ideas? Thank you!

1983 911SC Targa