The build up to the first sex scene with Cora/Beatrice is a lot better on the solo path. When she gives you her virginity, it is adorable, but it only happens on the beach trip if you romance only her, like the plane blowjob. You're locked out of a real romance with her if you fuck any of the other LI's. You still have sex with her, but the cute, "lovers" interactions don't happen if you sleep around. Also, the lesbian subplot with Tara only exists if you're sleeping around, and she bars you from touching her girlfriend anyway.