Liz was remarkably skinny, probably 105 lbs soaking wet, with short, messy maroon hair that fell down along either side of her box framed glasses, which were set in front of big, hazel eyes. Her chin and nose were narrow, a small silver chain around her neck. The park service uniform was tight, illustrating that she had a figure, though slight, even at her weight, the button down shirt open just enough to hint at cleavage.

Gingerly, she’d tuck her penis back into her pants and zip up her fly. She knew it was wrong, but the sheer size of Meg’s penis was enough to send her into overdrive. She’d never even seen a penis that wasn’t hers before today, and now she had Meg, unconscious, spread legged and nude, laid out in front of her. Well, it wasn’t just the size. The bruises did it, too. She imagined what could have caused such horrible injuries to a pair of testicles, and that only made her more aroused. Liz had found Meg doubled over on the side of the road, crying, holding her balls earlier that day. She couldn’t walk, they were so badly injured. Eventually, Liz had to sedate her to treat them.

Meg’s penis was rock solid the entire time while Liz examined her balls. Liz hated to admit it, but once she’d treated them (one of Meg’s testicles had been twisted around inside her sac) she sucked her off. Meg was unconscious, and Liz couldn’t stop staring at the huge purple head of her dick. Liz had never done anything with anyone, before, and with that huge cock just jutting up in front of her…well, she couldn’t help but try it. Meg came quickly. To be honest, Liz was surprised she even could, with how badly her balls were bruised.

Over the next few days, Meg stayed with Liz in the cabin. It was a little three room outpost-type in which Liz stayed for half the year, some 20 minutes by jeep from Meg’s family home. The park service had built it back in the 60s, and, aside from electricity and some other commodities, it had remained much the same. With Liz regularly checking Meg’s balls, the two of them became fast lovers. At first, Liz couldn’t handle Meg’s size, and resigned herself to sucking Meg off on a regular basis, but that didn‘t last for long. Liz was shocked at how much she enjoyed it.

It was on their third day together that one such session was interrupted by a loud thumping noise. Nude in the living room, Liz lowered her head to Meg’s massive cock while she lay spread out on the couch. Slurping hungrily, Liz sucked down that swollen head, bringing her teeth down just behind it, not hard enough to break the skin, but hard. She pulled back, tugging on Meg’s mammoth meat before bobbing back down, biting further down the shaft. She continued to gnaw on Meg’s cock for a while, Meg’s head tilting back in ecstasy, until the thumping began.

Pausing, Liz want over to the window to investigate. There were two horses kept in a small stable at the outpost to get to places jeeps couldn’t go, and as Meg moved up next to Liz, they saw the two of them just outside. The stallion reared, trying to mount the female two feet of huge, onyx cock proudly on display for the two shemales watching. As he came down, attempting to mount, the female bucked, kicking. With another resounding thud she connected with the stallion’s massive balls. The stallion didn’t rear back or try to escape…quite the contrary, he stayed right where he was. Another kick! His big balls jostled, swelling under the violent onslaught. The stallion whinnied, his cock rising as more brutal kicks decimated his massive equine maleness.

Meg’s penis throbbed, and while Liz was transfixed on that giant ball sack as it was ruined before her eyes, she slipped around behind the much smaller girl. Liz yelped as she felt Meg slam into her, Meg’s huge balls slapping against her much smaller pair. Meg fucked Liz furiously as they watched the castration play out before them. By the time seven kicks had landed, the stallion’s balls weren’t even round, any more, bug grotesquely lumpy. One, final kick caused the stallion to dismount as a massive gout of cum erupted from his now useless shaft. With a splat, the stallion’s final load hit the dirt, wasted, as white slowly turned to red, the huge throbbing length finally ejaculating blood.

Liz arched her back, screaming as Meg thrust into her, their balls sore from slapping together. Meg grunted, her cock spasming as she finally unloaded into the small, mocha skinned girl.

Outside, while the two screamed in ecstasy, the stallion stood pensively, his once mighty penis now limp and rubbery, useless. That night, Liz had no choice but to remove his pulverized masculinity, his big, limp monster dangling just inches from her face.