Tibby strips and you follow suit

The seemingly eager cat has already stripped to her underwear by the time Ashley comes back, now wearing a white labcoat with several markers sticking out of a pocket, so you follow suit while Ashley watches. “OK, I can work with this,“ the bunny says once you are out of your clothes. “But who should I start with?”

“Me, me, me!” Tibby pipes up.

Uncapping a marker, Ashley writes 'abdomen' on Tibby’s belly and encircles it. Above she writes 'breast' and draws two arrows pointing to Tibby's bra.

Switching to you, she marks your abdomen too but then moves up your body and writes 'chest' in the middle of your upper body below shoulder height and encircles this too. Below it she writes nipples and draws two arrows to your nipples.

Switching back to Tibby she says, “Now if we remove this you’ll see the female nipples are positioned here,” and pinches Tibby 's nipples through the bra.

In a wave of silliness Tibby goes "meeow, meeow" each time Ashley touches her nipples.

“Now let's mark this down, shall we?” Ashley says while removing the bra. After marking the chest she writes 'nipples' and draws one arrow across each breast to their pointy ends. Below 'abdomen' she writes 'groin' on both of her living whiteboards and draws an arrow down to their undies.

Pulling Tibby's panties down she writes vulva above her crotch and after pulling your boxers down she writes 'penis' above yours.

"Now you see that these areas are different from each other," Ashley says holding your cock in one hand and tracing Tibby's fold with the other.

At the same moment, Tibby murmurs "this is nice" and starts making a purring noise.

Ashley lets go of both of you and turns to you. "The external male genitals consist of two major parts, the details of which we can get into later," she says drawing an arrow down to your cock, and then another to some writing on your thigh.
"-Penis" while holding your cock in the palm of her hand.
"-Scrotum" while she makes a motion like she's weighing your balls.

"The female genitals are a lot more complex visually," she says while drawing a similar line to Tibby's thigh and starting an enumeration.
"- Labia majora" with her finger on the outer fold.
"- Labia minora" while tracing the inner fold
"- Vaginal opening, which leads to the vagina itself" while indicating between them.
" - Clitoris" while pointing at the top of her folds.

All the unavoidable poking and prodding while writing on her whiteboards didn’t miss their effect as “Little John” rises to the occasion. Not missing a beat Ashley continues with her lessons and says “Now you see the male organ has two forms: a flaccid one and an erect one. Let's go over the details now.”

Using her marker as a pointing stick, she touches the base of your shaft and says "this is the radix." Trailing the marker further along your shaft she gives it a light tap and says "this is the corpus." Reaching the tip she says "now this what we call the prepuce and if we peel it back we see the glans," and touching the slit in the centre of your glans she says "and this is the meatus."

You grow even harder, flexing your dick as she moves the foreskin back with a light stroke, baring your glans and touching it. Tibby can't keep her mouth shut and pipes up with the comment "well somebody seems to enjoy being tutored" while sniggering.

"And you're not?" you ask with a smirk. "I know you're looking forward to our lessons getting more interactive."