donny and marie
a brother and sister with an incestuous relationship
That guy and his sister act very strangely when they are together. I think they are Donny and Marie.
donnie and marie osmond
The biggest losers ever. They are brother and sister and fucked each other, they're music sucks and Im glad they're dead or depressed or born again christians, b/c they suck and the world has had enough
Donnie: YES MARIE YES YES YES!!
MArie: Dammit Donnie! moms right there
MArie: Dammit Donnie! moms right there