Use her mouth

Harry grabs Pansy by the hair and pulls her behind him forcing her to crawl on her hands and knees to keep up. Once they enter the bedroom he deposits her on the floor by the bed. Harry sits on the edge of the bed his hard cock pointing right in the face of Pansy. "Now show me how sorry you are for rudely interrupting my time with Narcissa." At this prompting Pansy takes his cock in her mouth. She tastes her fellow slave and her new master all at the sametime. Pansy closes her eyes and gives herself over to the task of pleasing Harry. The outside world stops for her, nothing else in this moment matters but trying to maximize Harry's pleasure with her mouth and throat.

Narcissa collects herself and crawls off the bed and joins her fellow slave at the feet of her Master. She takes in the scene to its fullest. As she studies Pansy she can see the wetness starting to trickle down her inner thighs. Narcissa can't help but to explore the the tight body of her fellow slave. She finds her engorged clit and slowly rubs it in small circular motion with one hand, as the other grabs and fistful of hair.

At this point she looks up into her Master's brilliant green eyes and he nods with approval as she starts to facefuck pansy on Harry's cock.