He offers to buy the lamp for her if she lets him fuck her.
Although Audrey is upset at the bargain, Lucas gets his way.
Lucas offers to fix the lamp, but only if Audrey gives him a blowjob.
When Lucas fills her mouth with cum, Audrey runs out of the room and leaves her stepbrother to keep his end of the bargain.
Climbing onto her hands and knees, Audrey lets Lucas pound her tight twat from behind.