It is the opposite, the sex stuff is actually a punishment: it is disgusting by design (the main developer's intentions), if Lona gets into a situation involving sex against her it becomes a detrimental overall.
In my opinion, the game at its core is a grimdark dystopian action rpg that happens to have sex mechanics, which Lona can use herself but you have to build her around it.
This game's difficulty is mostly a knowledge check, ofc you need the skills to pull out the exploits; it's like 80% knowledge 15% skill and 5% luck.
Here are some video examples of using different game mechanics courtesy of RLJFZ:
https://f95zone.to/threads/lonarpg-b-0-10-5-0-eccma417.49993/post-19153858
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can somebody please share with me the RolePlay-S mod?