Without a word Brittany left the room, leaving Nathan on his back: a panting and exhausted mess. His heart was pounding and his mind racing, wondering what his mate had planned for him next. Under his labored breathing, he could really feel the weight of his new breasts. He wondered if this is how Brittany felt all the time? Or perhaps she was more used to it, having lived with her massive breasts her entire life. Even so he did feel a twinge of guilt: his breasts were so heavy, it was almost painful! It made him sad to think what gave him such joy, Brittany’s breasts, might cause the love of his life so much pain.

But those where thoughts best saved for later, because Brittany reentered the bedroom with a large girlcock, stiff with arousal, jutting from her body. Nathan watched curiously as it bobbed and weaved. He’d always wondered what it would be like to get fucked by a cock before, but Nathan had always been much too straight to sleep with another guy and nervous to ask Brittany to fuck him up the ass. It turned out he didn’t need to ask!

“Good girl,” Brittany cooed lovingly as she clambered up into the bed. She wasn’t entirely sure how Nathan was going to react to her large penis. After all ,they’d never even discussed pegging in the past and she knew that Nathan was straight. Lots of guys might be willing to try out being a girl for an afternoon, but that didn’t mean they wanted to get fucked quite like this. “You enjoying yourself?” she asked, making sure to take care of her boyfriend.

“Uh huh,” Nathan nodded in affirmation. Truthfully he was having the time of his life. “Fuck me Mistress?” he asked with a desperate whimper.

“Well…since you asked so nicely!” Brittany said, smiling broadly as she carefully lined her cock up with Nathan’s pussy.

Nathan bit his lower lip, waiting with baited breath forms first penetration. Well that wasn’t entirely true, he’d actually played with dildos on his own a couple of times. Usually when Brittany and Jessie where both out of town and he had the apartment all to himself. There was a big difference between riding a dildo all by yourself and a real life cock preparing to fuck you. Nathan was totally out of control as Brittany leaned forward. Her weight and leverage pinning him helplessly against the bed while Brittany slowly entered her mate’s brand new vagina.

“Oh god!” Nathan squeaked as Brittany’s girth slowly entered his womanhood, stretching and filling him in such a satisfactory way. It wasn’t just the feeling of Brittany’s huge cock rubbing against his most sensitive skin, not even the pleasant feeling of…fullness that accompanied it when he felt her heavy balls rest against his tailhole. No, the feeling of penetration was only a part of getting fucked: the scent of his dripping wet pussy mingling with the scent of her pre. The gentle squelching sound as Brittany used her cock to spread his vagina open…not a very sexy way to describe it, upon further reflection. But it was the best he could come up with, particularly in that moment of passion.

These where all the usual things Nathan noticed during sex, but there was one thing different that he’d never noticed before. He looked up at Brittany, who wore a look of concentration as she had her way with his body. Thrusting, groping, and even “YELP!”… spanking. But there was also a look in her eyes…that same look of hunger that he’d seen all day but more. Like she was just as out of control as she was. It caused a strangely powerful thrill down his spine, even if he was the one pinned to the bed and fucked. He could hear Brittany’s sexy whimpers, moans, and heavy breathing as she continued to fuck him. It felt both liberating and empowering at the same time, allowed to take a back seat and enjoy the ride as the bottom! Not to say he didn’t do his part.

“Oh yes…fuck me, Brittany. Fuck me like a naughty girl.” The dirty talk even surprised Nathan, it felt so strange to say, but Brittany seemed to respond positively as Nathan did his best to thrust back. Of course with his legs held up by Brittany in the air there was only so much he could do.

Before long he could tell Brittany was close, and he was too. “Come on baby!” he moaned desperately. “Give me all your cum.” He knew how much of a turn on it was for him to have your partner beg for your cum, and it seemed like Brittany was equally aroused by it.

“Are you my little cum slut, hungry for my load?” Brittany asked.

“Yes Mistress.”

“Then take it!” Still holding Nathan by the ankles Brittany thrusted forward for one more ball slapping push.