The Sapiosexual Submissive: Cuckcake For Two

Cuckcake is a term derived from cupcake and cuckquean. Comparing a threesome to a meal, the cuckquean is the main dish and the cuckcake is dessert.

Lydia is conflicted. Her relationship with Duncan has never been more solid and she genuinely enjoys watching him with Rachel, yet she still experiences an illogical nagging pang of jealousy while doing so. 

While she and Duncan are on vacation, a chance encounter with a younger woman which leads to a wild threesome uncovers in Lydia a desire that she wants to expand upon. After she had taken the lead and dominated their shared cuckcake, she then realizes that if she were to dominate Rachel there would be no jealousy. 

Could being a submissive cuckquean to Duncan and a domme to Rachel be the perfect solution for Lydia's conflict?