Wiktionary
butt cheek
alt. (context slang English) A buttock. n. (context slang English) A buttock.
Usage examples of "butt cheek".
When he didn't think Xris was moving fast enough, he sent another jolt sizzling into Xris's right butt cheek.
He let go of one butt cheek briefly to reach down and slather the tips of his fingers with some of the lusty juices leaking from her vagina, bringing them to his face to sniff the heady fragrance.
He was nude from the waist down, and there was a red hole in his right butt cheek.