I'm assuming you're in high school, based on the described scenario. The thing is that most girls are boring. The other thing is that these girls are viewing you through the lens that all younger girls do: are you a potential mate. You aren't, possibly because you are a family friend, so you are invisible to them. I get it that you say you wouldn't plow either of them, but these two probably just became sexually aware/active and the switch is turned on in their heads now to only value top tier males. Welcome to 80% of men.

So realize a few things: It isn't your job to entertain them, or even get them involved. The reason that women like Chad is because he's spontaneous and exciting. The reason Chad is like that is because Chad is out there doing what he thinks is fun, not trying to cater to others as you are trying to do with these girls. Sure it may not be sexual in nature, but the interplay is the same. They see it as just another guy trying to get in their pants. Yes, even if you aren't. Something you may be about to find out is that around sixteen, even average girls have guys throwing themselves in front of her for sex, so she assumes any interaction with a male has sex as a backdrop.

We are all going on a trip and there's nothing else I can do besides learn to talk to them.

Except go on the trip, ignore them, and spend that time doing whatever makes you happy.

I'll give you a challenge: Game another girl on this trip who's objectively better looking than either of these girls, one that you actually may be interested in. Ignore the other two. Not in a rude way... be polite. But keep interaction to a minimum. You're busy with the other girl. See how fast these two want to approach you and start yapping then.

Get one to blow you while the other licks your balls. That's not boring.

You don't. Do something else with your precious time

They’re boring because you’re boring to them. Do interesting stuff with them, lead them places, introduce them to new shit.

Alcohol is the answer

Think about how Chad would act with them. He shows sexual intent and energy right from the start. He flirts, he makes sexual comments, subtle at first and more overt over time. This takes a lot of practice and a DGAF attitude. If done well these silly girls will be excited, turned on and suddenly will be showing you more attention.

The flirting and balls to show clear intent is what separates Chad from the 80%, most likely the attraction window with these two has closed but the practice of being a Chad is necessary with them or with future women.

It is incorrect to say that girls especially teenagers think or "know" who wants to sleep with them, sure they have a general idea that guys want to sleep with them, but they don't really know if you do unless you show clear intent. Girls are much more afraid of rejection than we are, they really need to know before they will consider it. You don't just overtly tell them(she has to be warmed up through escalation) but your body language and escalation lets them know in the right way.

This is seduction science and is severely lacking in these forums.

Next next next is a weak ego protecting move designed to prevent you from being treated badly by women, but it doesn't help you get women at all.

You are working way too hard to give these girls attention.

Stop trying to talk to them. Stop trying to play games with them and include them. Stop bombarding them with your validation.

Go on vacation and have a blast doing your own shit.

The only thing that will be intersting to them is talking about relationships. But I don't if you should.

AWALT, dont give a fuck about them and act like you have your girl and they will approach you. If they tell you hi, tell them yeah, cool.

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