this a classic on threesomes, but not polyamorous relationships. both tops have a rivalry going on, at the end they accept being together with the bottom but ig its more of a truce in their bickering than an actual possibility that the two of them might be into each other.
the tops are childhood friends, so they're not always killing each other as many 3p bls are, so thats a positive point, you could imagine that they get together in the future