Yes

"You're right" I say "Sarah should get something."

Genie looks down at Sarah who opens her eyes and looks back at him.

"Sarah. Your husband's sister has given you an amazing gift, and I am not just speaking of the orgasm she gave you. She is allowing you to have one of the wishes I grant. Now think carefully for you shall get only one (unless my Mistress is as generous in the future) and there are two conditions. Firstly it must be about something sexual, second you will forget you ever made it and be unaware it has come true even as it does,"

I look at Sarah and think she might decide to make her sex life better. Instead she looks genie straight in the eye and says "I wish my children would have the happiest lives possible, sexually speaking."

Genie smiles. "You are a good mother" he says ?"and so, while you shall not remember, I will tell you what your wish has wrought"

"Your son shall loose his virginity at the age of 16 to a girl who he cares for so deeply that he will have sex with no-one else and will marry her once they are of age. She will conceive on their honeymoon and your son will discover that he love her even more when she is carrying his child. This will lead to a succession of grandchildren who will all be so well behaved that they will be a pleasure to baby-sit, which will be fortunate since your son will insist on trying for yet more at the earliest possible opportunity."

"Your daughter will discover she is bi-sexual and will enter a polyamorous relationship which will see her having to best sex of her life on a nightly basis. Once group marriages are legalized (thanks in the main to her fight to have them made so) her group will become one of the first to be recognized. Despite the amount of sex she is having she will not become pregnant, however many of her girlfriends will and she will feel no less 'a woman' for never having birthed a child."

Sarah looks up Genie "Thank you" she says.

"My pleasure" he says and touches her head again. She sighs and falls onto the bed, asleep and looking like she is dreaming of the best sex ever.

"You are a good mistress." he says "Few would allow others to share their wishes, even though they be infinite. Now tell me, what is your wish?"