They are on board and ready to get sexy

Arthur and Anne stared and silently took in Mary's offer for a moment. There she and Sara stood ready to deliver unto them a world of sexual excitement and satisfaction. Neither of them had ever had much luck in romance, mostly passed up by their high school peers. Now their libidos had been ignited and had been allowed to seize control of all their reasoning.

"Yeah... that would be okay" Arthur answered as if wondering if this was a hallucination or dream. "I don't know what you can do but I want to find out..."

"I wanna see too..." Anne said agreeing with her brother.

"Excellent, then lets not waste any time." Mary concluded and, using her body as a lure, led the siblings into the house. Mary and Sara could have returned to the forest, but they were so aroused themselves they no longer cared if anyone noticed them at Sara's home. Since they had confirmed they would be on board, Mary and Sara each took hold one of the siblings once they were in the house.