Alyssa initiated

Alyssa got up from her mat and crouched down beside Vicky. She put an arm around her roommate's tiny waist, then put her other hand on my ass. "It feels pretty nice, too. Try it."

The other girl paused for a moment, then quietly said, "Okay." She slid her hands down from my hips to my butt cheeks.

I now had three perfect female hands on my ass. They started to rub it slowly, which felt amazing.

Alyssa's voice got lower. "Of course, your ass is great, too, Vicky. I've always loved how it's so much smaller and tighter than mine." She slid her hand down from Vicky's waist to her pert butt cheek.

Vicky inhaled sharply, but didn't object to the touch. "No, your ass is so much better!"

"Are you sure?" said Alyssa. "You'd better make sure."

Vicky hesitated for a long moment, then slowly took one hand off my ass so she could slip it around Alyssa and grab her ass. She made the tiniest little noise when she touched her roommate.

Without looking away from Vicky's deep brown eyes, Alyssa said, "Hey Rick, did I tell you that Vicky is bi?"

I could barely concentrate enough to speak. Both of them were stroking my ass with one hand while exploring each other with their other hand. "No, you haven't mentioned that."

"I mean..." started Vicky, staring into Alyssa's eyes with a lot more vulnerability that I would have expected her to have. "... It's not like we've ever hooked up with each other. Not that I haven't, you know, thought about it."

Alyssa leaned forward slowly. Vicky closed her eyes as Alyssa closed in and kissed her. They stayed like that for a full minute, the kissing heating up as their hands explored each other's bodies and mine.

Eventually Alyssa pulled back. "Was that okay?"

"Yes," said Vicky. "Very okay!"

"You know," said Alyssa, "I've heard that three way kissing is fun, too. Want to try?"

The dark haired girl looked down at me, then back at her roommate. She shrugged with a shy smile and said, "Sure!"

I took the hint and pushed up off the floor, getting on my knees. Alyssa curled her finger to beckon me forward, and I leaned in. The three of us came together, and I was kissing two girls at the same time! It was awkward, but fun. Sometimes I couldn't tell which one was licking my lips. Vicky would grab my head and turn me more towards her, then Alyssa would do the same, and we'd go back and forth like that.

This lasted several incredible minutes, then Alyssa stood up and pulled her sports bra off, revealing her huge breasts again. Vicky immediately did the same, and I had two incredible sets of boobs dangling in front of my face. The girls grabbed my head and pulled me between them. I was buried in soft tit flesh. It was heaven.

"So," said Alyssa, "now we can start the real fun!"