Sure! Here is a collection of sentences that include synonyms for each word in the keyword "kat and romeo":
Katherine and Juliet are deeply in love.
Katie and Rafael couldn't resist each other's charm.
Kira fell head over heels for Hector.
Kristen and Romeo are the perfect match.
Kendall whispered sweet nothings into Romeo's ear.
Keira and Rome share a love that knows no boundaries.
Kayla and Randall are inseparable.
Kat and Rowan are meant for each other.
Karen and Raymond paint a picture of pure romance.
Kendra and Rodney have a love that will endure any storm.
I hope you find these variations helpful!