(Author's Note: The historical and archaeological details are generally accurate, but not immune from narrative anachronisms or oversimplifications. You'll learn a little bit about Roman culture and history, but nothing too educational.)
*****
As if taunting me, a crudely gargantuan phallus had been etched into the lefthand side of the bathhouse doorframe. The natural frigidity of the locker rooms, which led straight into the cold room, was compounded by my fear of impending exposure. At this juncture, my penis likely shrank some more.
Fortuna had more twists of ill luck waiting for me around the corner, where we were to store our clothes on shelves. As I had understood it, bathhouse lockers were denoted by numerals alone. Accordingly, I found myself staring at shelf IV. I didn't notice anything amiss until Terentia's chortle echoed sharply off the low half-domed ceiling.
"I love what they've done with the place! Changing rooms shouldn't be so boring and awkward."
"H-huh w-w-what?" My eyes flicked up, and I was astonished. A different erotic scene decorated the wall above each locker. A rollicking threesome, with two dark men thrusting collectively into an overjoyed maiden, topped Terentia's locker. Photis' little head hovered below a dutifully kneeling man, who pushed his lover's legs open as she lounged above him. His eyes were cast up, alight with satisfaction, as his tongue gratefully lapped pungent notes of pleasure from her crotch. My sultry slave seemed to coo approvingly at the fresco's sentiment.
The erotic image above my locker was by far the most confusing. Two women, hair flowing and skin glowing, were contending with one another on a bed. Breasts, hair, and curvatures aside, the woman on the left sported a gigantic green penis.
I must have been visibly confused - or, as per the usual, viscerally intimidated - because the female duo cackled in my direction.
"She's wearing a strap-on, silly Master," Photis helped.
Terentia could not help herself. "It's quite nice to have some solid cocks out in here, eh Photis? They'll do until the mighty Modestus makes us swoon."
Fellow bathers, reveling in their own hushed exchanges, cast looks of amusement and confusion my way. At a time when I wanted no attention at all, I was thrust into a veritable surplus.
Terentia's own girl slave set about undoing her toga. I was mesmerized as the clasp of her mantle snapped undone. The loose covering cascaded away and clarified her curves against a sheer, clinging slip. Her rear cheeks rippled against the fabric as she stepped forward to her slave, who pulled the whole affair down from her shoulders.
Each breast emerged like flotsam from a shipwreck, popping roughly to the surface before bobbing defiantly. The milk-white orbs could even be seen from behind her back.
Her slaves' little hands found the sweeping musculature of her bottom insurmountable, so Terentia had to jump up and down to gather the momentum necessary to fling the slip to her ankles. With the entirety of her fair skin displayed before me, from adorable feet to delightful calves to the dimples adorning her back, I was shocked my penis wasn't erect. Not yet.
It was fear. It was cold. It was both.
If I were to try and take her from behind - as shown, yes, in a locker fresco not far from mine - my feeble, quivering member would be unable to so much as poke her sex. It would slide across her wonderful ass with meaningless pride.
My date pivoted a couple degrees to her right, so that a sensual eye could scan me as I stared.
"Aren't you going to ask dear Photis to undress you?"
"Oh, yes, of course!"
With that, my slave dug her talons into my toga, and a cacophony of fabric shuffling stunned me in place. Then, finally, as I could feel my underclothes levitate skyward, I turned away from Terentia and faced the wall. The tunic brushed past my thighs and went over my head. I was completely naked.
"A nice, plump bottom!" Terentia jogged to me and pinched the center of my right cheek. "As spongy as a girl's - oh, and it ricochets like a lady's when I scoop it in my hand. So pliable and sweet."