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