[sp527]

Turns out that's mediated by the sexual impulse, and can be short-circuited via contraception.

[0x000xca0xfe]

It's not that easy to beat evolution, some will still have kids while those who only care about the fun will die out.

[giardini]

No need to wait: they've already fried themselves out of the evolution game with STDs. Any child they have will likely be retarded or diseased in some way.

Don't forget to include alcohol as a drug - "fetal alcohol spectrum disorders", FASDs, are a real thing.