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.
Kathy and Romeo couldn't resist each other's charm.
Katelyn fell head over heels for Romeo.
Karina and Romeo are the perfect match.
Kat whispered sweet nothings into Adrian's ear.
Keira and Roberto share a love that knows no boundaries.
Kayla and Roland are inseparable.
Keisha and Romeo are meant for each other.
Kelly and Romeo paint a picture of pure romance.
Kassidy and Russell have a love that will endure any storm.
I hope you find these variations helpful!