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