I'm Doing Me - You're really jerking off, but you don't want anyone to know

You're really jerking off, but you don't want anyone to know. You're just pretending you're taking a break.

I'm doing me, and I'm just pretending I'm not jerking off.

I'm doing me, and I'm just trying to hide my FAPFAPFAP.

I'm doing me, and I’m just pretending I’m not in my room alone.