Thanks for all the reports, I'll take a look over it in the next day or two. Can you try having sex with Saffron and see if the backgrounds have the same issue or is it only a problem with Aria's scenes?
I can't give Alchemy exp, it only gets distributed withing the special crafting window, there is no option in that script to hand it out manually.
When you say you talked to her after the footjob scene and the dialogue closed, did you even get to an option of what to talk about, or did the dialogue close instantly the moment you pressed the key to interact with her?
Text loop with condom I'm aware of, I found how to fix it :)
I don't really want to lower the WP for studying, the main issue is that the books only need to be read once and offer significant bonuses to her quests, plus you still get a decent chunk of Craft EXP without needing to use any Skills.
Also, the Footjob scene can be replayed, it just doesn't trigger every day. You only get her panties as an accessory once though.