Just an idea to cover it:
it may be left unsaid (since this is a fantasy world) or it may be added to the narrative that almost everyone was given a mandatory set of vaccines (without going into details) which development were finished while the MC was unconscious.
-------------
5) Motel job (eventually) will have this.
That's great. Always wanted Sammy as a maid.
"Motel job" suggests, that it will be place rather cheaper.
Maybe as an extension to this route, Sammy could (e.g. after several times at the motel and meeting someone who would tell her about the place) also take a job in the hotel with higher standards.
Place where:
- clients visit not for few hours, but e.g. for a day, two or even a little bit longer,
- visit at the hotel is expensive, but is available to everyone, if only one has money and complies to the rules,
- girls have to be at least 9/10, fit (at least 70 fitness for example), always having a makeup,
- girls dressed in a certain way (few sets of clothes, containing: high heels*, stockings, garterbelts, different tops),
- girls generally being on maid's duty, cleaning dust etc., but available for clients,
- girl on duty has to be professional, not expressing emotions, allowing every client to have sex with her without condom and cum inside her if he wishes (he has to ask for permission if doesn't get it before), even if she doesn't feel like having sex on a given day,
- guests cannot be rude, use any kind of violence, even verbally, everything has to be with consent,
- girls don't have to give blowjob or have anal sex, but it's their duty to allow vaginal intercourse,
- clients cannot get the maids' clothes dirty or ruin their makeup, so it is usually preferable to cum inside, into a tissue, sometimes in the mouth, or on the floor,
- time which one can spend with maid is limited (e.g. max 15 minutes), one guest can have fun with specific maid only once a day,
- the hotel provides contraceptives,
- Sammy working as a hotel maid-prostitute would have basic 4-hour shifts (with an option of extension). During each such shift, on average, several men would've cum inside her. The salary would depend on the hours worked (guests could only give her tips, but not very often, since the hotel is very expensive). Working there would be very profitable.
Example of an encounter during work:
Maid delivers coffee and dessert to guest room, client walks up to her, then behind her, lowers her panties or pulls them aside, fucks her, asks for permission to cum inside, creampies her, cum drips on the floor, he walks away. Sammy in such situations would be indifferent, reading something or just waiting for a guy to finish, even sometimes saying something like during bar scenes: "Ok, let's get this over with." or during intercourse:"Could you hurry up and cum already, please?", "You can cum outside or inside me, I don't care.".
Seems like this would be consistent with Sammy's personality.
* I'm not sure if that would be a big inconvenience for you, but high heels would go perfect with the maid's outfit.