Challenge Emily

You take a deep breath. "Um... well... let's do it, Emily," you say, with an attempt at a nonchalant shrug.

"Great!" Emily replies chirpily. You follow her back to the counter. Ada has laid out a square rubber pad on the countertop already for your elbows. She stands by the side expectantly - apparently she'll referee.

Emily goes behind the counter, rolls up her sleeve, and flexes. The small but shapely lump of her biceps stands out nicely on her arm. It looks to be about 11", maybe 11.5" measured around the peak.

Then, with one casual movement, she strips her shirt off - and she's wearing nothing underneath! Her pink nipples point out from small, pert breasts. She flexes her arm again, and this time you can see the lines of definition where her deltoids join with her pecs. You can also see the faint lines of definition on her abdomen. She looks trim and fit.

She's also smiling brightly at you, clearly expecting you to follow suit. Well, might as well go the whole nine yards now! You flush a little as you strip off your top too, and unhook your bra, to let your breasts swing free.

Then, feeling a little self-conscious, you raise your right arm for a flex-off.