You got 3 lives on your cock, after that you can go into minus. To get it back, just need to focus only on the outer stream. Might take multiple sessions but it should come back, depending on how minus you went.
Just tried it and it does come back, but took multiple sessions of only the outer stream, which felt a bit too long, so might be a little bugged. But found another bug. If you pass out in the hypnosesh and wakeup in the relief room, you’re missing your mouse, which isn’t deliberate. Doesn’t luckily lock out completely, you can just pass out again to return. Thanks for helping me find it hehe.