Similar to a Shakespearean sonnet, the sus sonnet is one of 4 major types of sonnets in poetry. The sus sonnet is the final embodiment of poetry and human intellect so there are no restrictions to how it is written.
Artists such as Kanye East and DigBarGayRaps have able to combine poetry and rap in their gay freestyles.
"He lick my dick and the cum start dripping
I took a bite out of his ass, it tastes like lemon pepper chicken
He throw me up in the air, my booty flipping
He dug in his balls in my booty like he Scotty Pippen" -DigBarGayRaps
Although a rhymed verse is not required, it is present in this sus sonnet. These lines are the pinnacle of mankind and truly masterful.