Callipygous or otherwise appealingly voluptuous.(adjective)
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Use "bootylicious" in a sentence
"Beyonce and husband Jay-Z may soon have their own mini-me to swaddle in bootylicious Dereon kids wear, if a report this morning from Us Weekly is true."
"James Kilpatrick explains how the word bootylicious ('sexually attractive, sexy; shapely', apparently new to him despite its ubiquity over the last decade, entered the OED, a canonization that filled him with horror (I asked, 'The booty-what?'"
"I want to jab something in my ears at the mention of single ladies or when someone uses the term bootylicious but this is fun!"