Later, but for now...

Upon hearing that question I feel my dick getting harder getting their attention, but wanted to keep the "teaching" going and try a few more things. "We can refine and polish up on this lesson later for now we are still learning, so how about we start on our next lesson?"

You receive a "Uuuuugh" and "Mmmm" of disappointment as your answer.

Stopping a little laugh from escaping you reassure them, "Oh come now, just because it's different does not mean the lesson is any less important...or pleasurable." Now getting sighs you see a soaked faced Peridot getting up next to a still blushed and leaking Lapis sitting side by side chest bare. A nice view to see; light blue and green with a pair of darker shades of color on each mound respectively. Their partially trembling legs are opened enough to see each soaked hole while one was leaking your own work (gonna need to explain that one later).

"Alight well the lesson did not go as expected but not unpleasant-" I'm interrupted

"Agreed." Peri says quickly.

"I'll say." With a satisfied smirk.

Continuing "But we have added a part of the second use of the human male penis: Sexual Pleasure"

I tell them of how this can also be used to stimulate an individual as I gesture to when Lapis sat on Peri's face and Peri eating her out. "Now focusing on that topic Lapis you already got a feel for being of the receiving end getting to release which is another term for "orgasm" you did not return the stimulus to the giver a.k.a. Peridot." You can see the realization hit their faces.

"Oh wow, so uh...does this affect the lesson after the change?" Peri asks

I explain "Next will be foreplay where one partner pleasures the other in a act where pleasure is given in one direction. Meaning only one is necessary for now."