Ludwig doesn't do that if you don't infuse him with Lust ;)
He did, but it he gives handjob instead of blowjob if I'm not infused him with lust
Then that’s because he has been infused with Lust earlier in the night already!
Do you mean when Ludwig asked Ress to naked in truth or dare game ? So if I didn't infuse Ludwig with lust at all, then will I get another plot story ? I'll try it, it is intrigue me