For me the Rose scene isn't rushed, it's the Cyanna scene that's the problem. She's completely superfluous in a scene where she loses her virginity. Rose's scene took place exactly when it should have, the only way she wasn't taking dick this update was if she didn't appear in it at all as she had done basically everything sexual up to actual sex by the end of the last update. The same could be said of Cyanna and had N_Taii not combined the scenes into one she wouldn't have felt like the understudy. But they were combined into one and because Cyanna is a less important character than Rose and Ulrod is a pathetic simp for her it simply felt like she didn't really need to be there.
Everything Cyanna gave in that scene was eclipsed not only by Rose doing the same, but Rose's sacrifice of her "purity" (and I use that with giant quotation marks so as to avoid the misogynist assertions connected to the use of purity in this regard) also caused a giant magical crystal to rain super laser piss on the threat present in this update. Rose's actions not only proved that she is the rightful queen of the nation, but they also gave validity to the Duke's schemes, pushed things forward in a way that would increase her reliance on the Duke, and allowed him to seemingly get his hands on the artifact that was lost when the ship carrying Leto's family to the island sank at the start of the game. Rose's vag saved the day, Cyanna's just got stuffed because she got drunk and made an ass of herself. Cyanna really didn't need to put out at the same time as Rose.