The girls leave and Niah'la ups her game

The girls indeed felt a pang of jealousy and maybe even envy at the sight of Nia so passionately blowing Ryu, but the mix of shame and disdain they felt towards such obscenities was bigger by magnitudes so after the elf showed no sign of stopping anytime soon, the other girls stood up and left the pool to go dry and dress themselves.

As for the other two... Nia didn't even notice the girls leaving, nor would she care about it, whereas Ryu was more than happy to just enjoy whatever advantage he could get from Niah'la sudden naughty inspiration.
And it was indeed a good decision to keep still, or at least it was for his pent-up balls as the elf gave him quite the service, devotedly cleaning his cock and treating it like her most beloved treasure.
Well, if there was one thing she never complained even after he slimmed down, that was his cock as it was as big as ever.

Just sucking didn't seem to satisfy Nia though, as the girl eventually got tired of it and let the manhood out her mouth, moving over to straddle Ryu before lining his cock up and sitting down, impaling herself in the process.
The ecstasy in her eyes couldn't be hidden at all, the girl immediately embracing Ryu and leaning forward for some smooching, tangling their tongues together whilst going all out gyrating her hips.

She was shaking her hips like crazy, back and forth, riding him like a crazy cowgirl, but Ryu too didn't wish to be underestimated and so he reciprocated both the hug and the kiss, holding her close while bucking back against her thrusts... it had been quite some time from the last he'd got some, and wouldn't it be a waste to not enjoy this to the full? Therefore to the full he groped, hugged, kissed, slammed his hips forward against hers, both of them becoming more frantic with their actions as they got closer to their peaks...