My Girlfriend and I Have Sex in Front of Her Sister_(2)

Author’s Note: This story is heavily inspired by my other series, Exhibitionist Sister.

My name is Alex. It was a Friday night, and I was sitting in the basement of my girlfriend’s parents’ house. My girlfriend, whose name is Brittany, sat next to me on a couch to my left while her slightly-younger sister Melanie sat across from us on a different couch.

“Can you go get me a water bottle from the fridge?” Melanie asked.

“Me too, please,” Brittany said.

“What do I get in return?” I joked sarcastically.

As I was standing up, Melanie said, “I’ll flash you my tits!” She immediately turned red and started laughing hard.

Brittany just rolled her eyes and smirked.

“Oh really?” I said suspiciously. I was still speaking with a playful tone.

I gave Brittany a look. She just shrugged and nodded. To me, that meant she didn’t care

one way or another if Melanie flashed me her tits. And that didn’t really surprise me. Brittany

was fairly liberal when it came to nudity. Melanie looked at Brittany, who gave her sister the same shrug and look that she had given me.

“I was joking,” Melanie said hesitantly. “But if that’s what I have to do, then I’d do it. They’re just tits.”

I turned and faced her, crossing my arms. “Just tits, huh?” Brittany has lovely boobs — big and round with perfect nipples. I could tell that Melanie’s were big too, but obviously I’d never had the fortune of seeing them in anything less than a swimsuit.

“Yeah,” Melanie shrugged. “So do we have a deal?”

I briefly glanced back at Brittany, who just shrugged and nodded again.

“Yes, we have a deal,” I said, trying to sound confident.

“Do you wanna see now or when you get back?” Melanie asked.

“Money up front,” I said, causing both Brittany and Melanie to laugh.

“Fair enough,” Melanie said. She grabbed the bottom of her shirt and pulled it up slowly, hooking her fingers into her bra on the way up. She quickly pulled both her shirt and her bra the rest of the way up, revealing to her sister and I her tits.

“Holy shit,” I said. They were big — about the same size as Brittany’s. Both girls had cute nipples — not too big, not too small. Melanie’s were very obviously hard. Perhaps she was getting a kick out of showing herself off? After all, she certainly had something worth showing off, that’s for damn sure.

“Goddamn Melanie,” Brittany said, nodding with approval. “You’ve got a nice rack.”

“Thanks sis,” Melanie said with a smile. She held her shirt and bra up for a while, giving me a good look. I was definitely committing this to memory for the next time I jacked off.

“Have you gotten your fill yet, Alex?” she asked me, still smiling and blushing. Her tits were surprisingly perky given their size. I would’ve loved to squeeze them, but that wasn’t part of the deal. Honestly, just the fact that I was ogling my girlfriend’s sister’s tits was downright shocking.

“I could look at your tits all night,” I said, sighing. Perhaps that was a bit much, but I really don’t think it was too out of line. I mean, Melanie flashed me her tits, and Brittany had given permission after all. “But I suppose you’ve now held up your end of the deal. You have really nice boobs, Melanie.”

“Thank you,” she said cheerfully. She pulled her bra and shirt back down, adjusting them slightly as she did so.

I quickly turned and went to grab waters — I was just gonna grab one for everybody. By the time I got to the fridge, my dick was fully erect. I sighed. There was no use in trying to get rid of my boner unless I jerked off, and I wasn’t gonna do that right now. If Melanie could show me her tits, then she could handle the fact that I had a boner. Besides, she’d only see the tent in my pants, not my actual dick.

I walked back with the bottles of water in hand. As soon as I came into view, Melanie began to giggle. Brittany looked back towards me and cracked a smile.

“Jesus Christ, Alex,” Brittnay laughed.

“What?” I said, shrugging. “Did you guys not expect this?”

“Well, I did,” Brittnay giggled. “I don’t know if you did though, Melanie.”

Melanie was blushing. “That’s from me?”

“What else could it be from?” I asked, handing Brittnay her water bottle and then Melanie hers.

“I don’t know. Good point,” she said, giggling. “That’s very flattering.”

“I wasn’t lying when I said you have gorgeous tits.”

“Thank you,” she blushed.

I sat down next to Brittnay, making no effort to conceal my erection. My dick was angled down my left leg, but it was trying its damnedest to free itself from my pants.