I think is because Lars is really expontaneous, and you never know if youll see him once per month or everyday, since he is homeless. So that absence and variavility is what makes Gil decide to let Parker do that, and not Lars. Plus, Parker seems a lot more organize and determined to control Gil, Lars probably would forgot that his task is to control Gil emotions and behavour.
And, Parker its nowadays a has a lot more presence in Gils life since they teach in the same university. So it would be more easy to check on each other.
Gil describes it as an exchange. Parker is more than happy to stop gil. Remember how he wanted to stop gil and lars on Parker day 7? He mistakenly thought they were fucking in the restroom bc tora (sarcastically?) said it sounded like they were having fun, when in actuality lars was vomiting. Liz stopped him and told walter about the cockblocking bc she was concerned.
If you go to the hot springs with Parker on lars day 8 and don't play along with Tora, Parker instinctively bonks Tora because it reminded him of gil, and he talks about how he stops gil when he does stuff like this because gil asked him to.
And there's all the times Parker lectures Gil. And Gil saying he's still a virgin because of Parker.
In Anders route lars knows about the deal and thinks it's unnecessary.
These and Gil's explanation wouldn't make any sense if Parker had rejected the arrangement and wasn't trying to stop gil. He just wants it to be one sided bc he doesn't want to diet
First of all, thank you for your patient explanation. As for whether Gil is a virgin, I don't think he is. In Lars Episode, the CG shows how close Lars and Gil are, which makes it hard to believe that he is still a virgin. Gil said he was a virgin, maybe just joking.
I don't understand why Parker should do these things, even if Gil asked him to do so. How Lars and Gil get along, It's none of Parker's business.