[Oh, there's no 'maybe' about it. Rise is definitely offering to suck Natsuru off - even without this, it wouldn't have taken her long to notice there's little Rise likes more than having something in her mouth.]

Go ahead and make yourself comfortable, Natsuru-chan. I'll show you how it's done. [And without further ado, Rise settles on the floor in front of Natsuru, ready to get down to business whenever she is.]