James decides he wants his family to enjoy a spit-roast.

James, seeing the changes take place, immediately throws himself onto the table, stripping swiftly and raising his legs, looking back at his, now male, mother with a smirk, before speaking to them as a unit.
"i want you to all fuck me~!" he cried out, waiting momentarily for the response.
And that is all he had to wait. His brother quickly jumped off his father, and climbed onto James, quickly sliding James' cock into him, while his mother and father both stood, smiling wide as they impaled their son from both sides, his father ramming his ass while his mother choked him.
His sister, feeling left out, stood to James' side, and James immediately grabbed his cock, stroking it rapidly as the family orgy continued.